Home / 72,006.24-99,373.40-40,175.84

Finding the Fourth Proportional to 72,006.24, 99,373.40 and 40,175.84

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Solution

The fourth proportional to 72,006.24, 99,373.40 and 40,175.84 is: 55,445.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.24 : 99,373.40 = 40,175.84 : x
  2. Step 2: Convert to fraction form
    72,006.24/99,373.40 = 40,175.84/x
  3. Step 3: Cross multiply
    72,006.24x = 99,373.40 × 40,175.84
  4. Step 4: Simplify right side
    72,006.24x = 3,992,409,120.91
  5. Step 5: Solve for x
    x = 3,992,409,120.91/72,006.24
  6. Step 6: Final answer
    x = 55,445.32

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1.5x scale

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.