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Finding the Fourth Proportional to 79,772.86, 110,098.70 and 60,621.42

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Solution

The fourth proportional to 79,772.86, 110,098.70 and 60,621.42 is: 83,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,772.86 : 110,098.70 = 60,621.42 : x
  2. Step 2: Convert to fraction form
    79,772.86/110,098.70 = 60,621.42/x
  3. Step 3: Cross multiply
    79,772.86x = 110,098.70 × 60,621.42
  4. Step 4: Simplify right side
    79,772.86x = 6,674,339,685.71
  5. Step 5: Solve for x
    x = 6,674,339,685.71/79,772.86
  6. Step 6: Final answer
    x = 83,666.80

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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.