Home / 85,271,881.20-117,713,625.24-54,373,582.32

Finding the Fourth Proportional to 85,271,881.20, 117,713,625.24 and 54,373,582.32

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Solution

The fourth proportional to 85,271,881.20, 117,713,625.24 and 54,373,582.32 is: 75,060,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271,881.20 : 117,713,625.24 = 54,373,582.32 : x
  2. Step 2: Convert to fraction form
    85,271,881.20/117,713,625.24 = 54,373,582.32/x
  3. Step 3: Cross multiply
    85,271,881.20x = 117,713,625.24 × 54,373,582.32
  4. Step 4: Simplify right side
    85,271,881.20x = 6,400,511,492,172,770
  5. Step 5: Solve for x
    x = 6,400,511,492,172,770/85,271,881.20
  6. Step 6: Final answer
    x = 75,060,047.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.