Home / 72,044.91-99,421.73-40,213.53

Finding the Fourth Proportional to 72,044.91, 99,421.73 and 40,213.53

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Solution

The fourth proportional to 72,044.91, 99,421.73 and 40,213.53 is: 55,494.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,044.91 : 99,421.73 = 40,213.53 : x
  2. Step 2: Convert to fraction form
    72,044.91/99,421.73 = 40,213.53/x
  3. Step 3: Cross multiply
    72,044.91x = 99,421.73 × 40,213.53
  4. Step 4: Simplify right side
    72,044.91x = 3,998,098,671.74
  5. Step 5: Solve for x
    x = 3,998,098,671.74/72,044.91
  6. Step 6: Final answer
    x = 55,494.53

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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.