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Finding the Fourth Proportional to 64,138.40, 96,337.20 and 61,935.20

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Solution

The fourth proportional to 64,138.40, 96,337.20 and 61,935.20 is: 93,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.40 : 96,337.20 = 61,935.20 : x
  2. Step 2: Convert to fraction form
    64,138.40/96,337.20 = 61,935.20/x
  3. Step 3: Cross multiply
    64,138.40x = 96,337.20 × 61,935.20
  4. Step 4: Simplify right side
    64,138.40x = 5,966,663,749.44
  5. Step 5: Solve for x
    x = 5,966,663,749.44/64,138.40
  6. Step 6: Final answer
    x = 93,027.95

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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.