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Finding the Fourth Proportional to 64,423.52, 88,904.24 and 36,129.12

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Solution

The fourth proportional to 64,423.52, 88,904.24 and 36,129.12 is: 49,858.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,423.52 : 88,904.24 = 36,129.12 : x
  2. Step 2: Convert to fraction form
    64,423.52/88,904.24 = 36,129.12/x
  3. Step 3: Cross multiply
    64,423.52x = 88,904.24 × 36,129.12
  4. Step 4: Simplify right side
    64,423.52x = 3,212,031,955.47
  5. Step 5: Solve for x
    x = 3,212,031,955.47/64,423.52
  6. Step 6: Final answer
    x = 49,858.06

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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.