Home / 72,323.28-99,788.76-40,487.04

Finding the Fourth Proportional to 72,323.28, 99,788.76 and 40,487.04

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Solution

The fourth proportional to 72,323.28, 99,788.76 and 40,487.04 is: 55,862.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,323.28 : 99,788.76 = 40,487.04 : x
  2. Step 2: Convert to fraction form
    72,323.28/99,788.76 = 40,487.04/x
  3. Step 3: Cross multiply
    72,323.28x = 99,788.76 × 40,487.04
  4. Step 4: Simplify right side
    72,323.28x = 4,040,151,517.67
  5. Step 5: Solve for x
    x = 4,040,151,517.67/72,323.28
  6. Step 6: Final answer
    x = 55,862.39

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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.