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Finding the Fourth Proportional to 65,601.80, 98,402.70 and 52,479.80

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Solution

The fourth proportional to 65,601.80, 98,402.70 and 52,479.80 is: 78,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,601.80 : 98,402.70 = 52,479.80 : x
  2. Step 2: Convert to fraction form
    65,601.80/98,402.70 = 52,479.80/x
  3. Step 3: Cross multiply
    65,601.80x = 98,402.70 × 52,479.80
  4. Step 4: Simplify right side
    65,601.80x = 5,164,154,015.46
  5. Step 5: Solve for x
    x = 5,164,154,015.46/65,601.80
  6. Step 6: Final answer
    x = 78,719.70

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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.