Home / 145,002.47-217,503.29-39,821.54

Finding the Fourth Proportional to 145,002.47, 217,503.29 and 39,821.54

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Solution

The fourth proportional to 145,002.47, 217,503.29 and 39,821.54 is: 59,732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,002.47 : 217,503.29 = 39,821.54 : x
  2. Step 2: Convert to fraction form
    145,002.47/217,503.29 = 39,821.54/x
  3. Step 3: Cross multiply
    145,002.47x = 217,503.29 × 39,821.54
  4. Step 4: Simplify right side
    145,002.47x = 8,661,314,974.90
  5. Step 5: Solve for x
    x = 8,661,314,974.90/145,002.47
  6. Step 6: Final answer
    x = 59,732.19

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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.