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Finding the Fourth Proportional to 68,887.60, 95,064.80 and 38,672.98

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Solution

The fourth proportional to 68,887.60, 95,064.80 and 38,672.98 is: 53,368.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,887.60 : 95,064.80 = 38,672.98 : x
  2. Step 2: Convert to fraction form
    68,887.60/95,064.80 = 38,672.98/x
  3. Step 3: Cross multiply
    68,887.60x = 95,064.80 × 38,672.98
  4. Step 4: Simplify right side
    68,887.60x = 3,676,438,678.08
  5. Step 5: Solve for x
    x = 3,676,438,678.08/68,887.60
  6. Step 6: Final answer
    x = 53,368.66

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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.