Home / 72,306.48-99,785.04-40,474.56

Finding the Fourth Proportional to 72,306.48, 99,785.04 and 40,474.56

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Solution

The fourth proportional to 72,306.48, 99,785.04 and 40,474.56 is: 55,856.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306.48 : 99,785.04 = 40,474.56 : x
  2. Step 2: Convert to fraction form
    72,306.48/99,785.04 = 40,474.56/x
  3. Step 3: Cross multiply
    72,306.48x = 99,785.04 × 40,474.56
  4. Step 4: Simplify right side
    72,306.48x = 4,038,755,588.58
  5. Step 5: Solve for x
    x = 4,038,755,588.58/72,306.48
  6. Step 6: Final answer
    x = 55,856.07

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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.