Home / 72,066.92-99,449.24-40,235.13

Finding the Fourth Proportional to 72,066.92, 99,449.24 and 40,235.13

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Solution

The fourth proportional to 72,066.92, 99,449.24 and 40,235.13 is: 55,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,066.92 : 99,449.24 = 40,235.13 : x
  2. Step 2: Convert to fraction form
    72,066.92/99,449.24 = 40,235.13/x
  3. Step 3: Cross multiply
    72,066.92x = 99,449.24 × 40,235.13
  4. Step 4: Simplify right side
    72,066.92x = 4,001,352,898.63
  5. Step 5: Solve for x
    x = 4,001,352,898.63/72,066.92
  6. Step 6: Final answer
    x = 55,522.74

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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.