Home / 72,332.76-99,820.98-40,508.13

Finding the Fourth Proportional to 72,332.76, 99,820.98 and 40,508.13

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Solution

The fourth proportional to 72,332.76, 99,820.98 and 40,508.13 is: 55,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,332.76 : 99,820.98 = 40,508.13 : x
  2. Step 2: Convert to fraction form
    72,332.76/99,820.98 = 40,508.13/x
  3. Step 3: Cross multiply
    72,332.76x = 99,820.98 × 40,508.13
  4. Step 4: Simplify right side
    72,332.76x = 4,043,561,234.57
  5. Step 5: Solve for x
    x = 4,043,561,234.57/72,332.76
  6. Step 6: Final answer
    x = 55,902.21

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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.