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Finding the Fourth Proportional to 66,830.68, 100,207.10 and 25,280.92

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Solution

The fourth proportional to 66,830.68, 100,207.10 and 25,280.92 is: 37,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,830.68 : 100,207.10 = 25,280.92 : x
  2. Step 2: Convert to fraction form
    66,830.68/100,207.10 = 25,280.92/x
  3. Step 3: Cross multiply
    66,830.68x = 100,207.10 × 25,280.92
  4. Step 4: Simplify right side
    66,830.68x = 2,533,327,678.53
  5. Step 5: Solve for x
    x = 2,533,327,678.53/66,830.68
  6. Step 6: Final answer
    x = 37,906.66

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1.5x scale

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.