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Finding the Fourth Proportional to 79,332.66, 109,470.96 and 47,500.74

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Solution

The fourth proportional to 79,332.66, 109,470.96 and 47,500.74 is: 65,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,332.66 : 109,470.96 = 47,500.74 : x
  2. Step 2: Convert to fraction form
    79,332.66/109,470.96 = 47,500.74/x
  3. Step 3: Cross multiply
    79,332.66x = 109,470.96 × 47,500.74
  4. Step 4: Simplify right side
    79,332.66x = 5,199,951,608.51
  5. Step 5: Solve for x
    x = 5,199,951,608.51/79,332.66
  6. Step 6: Final answer
    x = 65,546.16

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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.