Home / 85,271,985.20-117,713,768.76-54,373,686.32

Finding the Fourth Proportional to 85,271,985.20, 117,713,768.76 and 54,373,686.32

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Solution

The fourth proportional to 85,271,985.20, 117,713,768.76 and 54,373,686.32 is: 75,060,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271,985.20 : 117,713,768.76 = 54,373,686.32 : x
  2. Step 2: Convert to fraction form
    85,271,985.20/117,713,768.76 = 54,373,686.32/x
  3. Step 3: Cross multiply
    85,271,985.20x = 117,713,768.76 × 54,373,686.32
  4. Step 4: Simplify right side
    85,271,985.20x = 6,400,531,538,101,256
  5. Step 5: Solve for x
    x = 6,400,531,538,101,256/85,271,985.20
  6. Step 6: Final answer
    x = 75,060,191.49

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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.