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Finding the Fourth Proportional to 61,344, 84,635.28 and 37,458.72

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Solution

The fourth proportional to 61,344, 84,635.28 and 37,458.72 is: 51,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,344 : 84,635.28 = 37,458.72 : x
  2. Step 2: Convert to fraction form
    61,344/84,635.28 = 37,458.72/x
  3. Step 3: Cross multiply
    61,344x = 84,635.28 × 37,458.72
  4. Step 4: Simplify right side
    61,344x = 3,170,329,255.64
  5. Step 5: Solve for x
    x = 3,170,329,255.64/61,344
  6. Step 6: Final answer
    x = 51,681.16

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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.