Home / 72,336.28-99,824.40-40,505.17

Finding the Fourth Proportional to 72,336.28, 99,824.40 and 40,505.17

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Solution

The fourth proportional to 72,336.28, 99,824.40 and 40,505.17 is: 55,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,336.28 : 99,824.40 = 40,505.17 : x
  2. Step 2: Convert to fraction form
    72,336.28/99,824.40 = 40,505.17/x
  3. Step 3: Cross multiply
    72,336.28x = 99,824.40 × 40,505.17
  4. Step 4: Simplify right side
    72,336.28x = 4,043,404,292.15
  5. Step 5: Solve for x
    x = 4,043,404,292.15/72,336.28
  6. Step 6: Final answer
    x = 55,897.32

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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.