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Finding the Fourth Proportional to 85,248.85, 117,600.18 and 65,070.70

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Solution

The fourth proportional to 85,248.85, 117,600.18 and 65,070.70 is: 89,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248.85 : 117,600.18 = 65,070.70 : x
  2. Step 2: Convert to fraction form
    85,248.85/117,600.18 = 65,070.70/x
  3. Step 3: Cross multiply
    85,248.85x = 117,600.18 × 65,070.70
  4. Step 4: Simplify right side
    85,248.85x = 7,652,326,032.73
  5. Step 5: Solve for x
    x = 7,652,326,032.73/85,248.85
  6. Step 6: Final answer
    x = 89,764.57

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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.