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Finding the Fourth Proportional to 64,087.68, 88,424.64 and 38,937.60

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Solution

The fourth proportional to 64,087.68, 88,424.64 and 38,937.60 is: 53,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,087.68 : 88,424.64 = 38,937.60 : x
  2. Step 2: Convert to fraction form
    64,087.68/88,424.64 = 38,937.60/x
  3. Step 3: Cross multiply
    64,087.68x = 88,424.64 × 38,937.60
  4. Step 4: Simplify right side
    64,087.68x = 3,443,043,262.46
  5. Step 5: Solve for x
    x = 3,443,043,262.46/64,087.68
  6. Step 6: Final answer
    x = 53,723.95

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1.5x scale

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.