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Finding the Fourth Proportional to 94,767.75, 130,672.88 and 77,486.20

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Solution

The fourth proportional to 94,767.75, 130,672.88 and 77,486.20 is: 106,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,767.75 : 130,672.88 = 77,486.20 : x
  2. Step 2: Convert to fraction form
    94,767.75/130,672.88 = 77,486.20/x
  3. Step 3: Cross multiply
    94,767.75x = 130,672.88 × 77,486.20
  4. Step 4: Simplify right side
    94,767.75x = 10,125,344,490.72
  5. Step 5: Solve for x
    x = 10,125,344,490.72/94,767.75
  6. Step 6: Final answer
    x = 106,843.78

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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.