Home / 72,066.46-99,445.17-40,229.50

Finding the Fourth Proportional to 72,066.46, 99,445.17 and 40,229.50

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Solution

The fourth proportional to 72,066.46, 99,445.17 and 40,229.50 is: 55,513.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,066.46 : 99,445.17 = 40,229.50 : x
  2. Step 2: Convert to fraction form
    72,066.46/99,445.17 = 40,229.50/x
  3. Step 3: Cross multiply
    72,066.46x = 99,445.17 × 40,229.50
  4. Step 4: Simplify right side
    72,066.46x = 4,000,629,466.52
  5. Step 5: Solve for x
    x = 4,000,629,466.52/72,066.46
  6. Step 6: Final answer
    x = 55,513.06

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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.