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Finding the Fourth Proportional to 60,010.65, 90,047.40 and 38,945.73

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Solution

The fourth proportional to 60,010.65, 90,047.40 and 38,945.73 is: 58,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,010.65 : 90,047.40 = 38,945.73 : x
  2. Step 2: Convert to fraction form
    60,010.65/90,047.40 = 38,945.73/x
  3. Step 3: Cross multiply
    60,010.65x = 90,047.40 × 38,945.73
  4. Step 4: Simplify right side
    60,010.65x = 3,506,961,727.60
  5. Step 5: Solve for x
    x = 3,506,961,727.60/60,010.65
  6. Step 6: Final answer
    x = 58,438.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.