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Finding the Fourth Proportional to 88,000.96, 121,440 and 47,713.92

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Solution

The fourth proportional to 88,000.96, 121,440 and 47,713.92 is: 65,844.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,000.96 : 121,440 = 47,713.92 : x
  2. Step 2: Convert to fraction form
    88,000.96/121,440 = 47,713.92/x
  3. Step 3: Cross multiply
    88,000.96x = 121,440 × 47,713.92
  4. Step 4: Simplify right side
    88,000.96x = 5,794,378,444.80
  5. Step 5: Solve for x
    x = 5,794,378,444.80/88,000.96
  6. Step 6: Final answer
    x = 65,844.49

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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.