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Finding the Fourth Proportional to 64,292.72, 88,733.40 and 39,137.52

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Solution

The fourth proportional to 64,292.72, 88,733.40 and 39,137.52 is: 54,015.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,292.72 : 88,733.40 = 39,137.52 : x
  2. Step 2: Convert to fraction form
    64,292.72/88,733.40 = 39,137.52/x
  3. Step 3: Cross multiply
    64,292.72x = 88,733.40 × 39,137.52
  4. Step 4: Simplify right side
    64,292.72x = 3,472,805,217.17
  5. Step 5: Solve for x
    x = 3,472,805,217.17/64,292.72
  6. Step 6: Final answer
    x = 54,015.53

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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.