Home / 57,301.76-86,084.40-40,702.16

Finding the Fourth Proportional to 57,301.76, 86,084.40 and 40,702.16

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Solution

The fourth proportional to 57,301.76, 86,084.40 and 40,702.16 is: 61,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,301.76 : 86,084.40 = 40,702.16 : x
  2. Step 2: Convert to fraction form
    57,301.76/86,084.40 = 40,702.16/x
  3. Step 3: Cross multiply
    57,301.76x = 86,084.40 × 40,702.16
  4. Step 4: Simplify right side
    57,301.76x = 3,503,821,022.30
  5. Step 5: Solve for x
    x = 3,503,821,022.30/57,301.76
  6. Step 6: Final answer
    x = 61,146.83

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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.