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Finding the Fourth Proportional to 85,472.60, 117,950.46 and 51,949.40

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Solution

The fourth proportional to 85,472.60, 117,950.46 and 51,949.40 is: 71,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,472.60 : 117,950.46 = 51,949.40 : x
  2. Step 2: Convert to fraction form
    85,472.60/117,950.46 = 51,949.40/x
  3. Step 3: Cross multiply
    85,472.60x = 117,950.46 × 51,949.40
  4. Step 4: Simplify right side
    85,472.60x = 6,127,455,626.72
  5. Step 5: Solve for x
    x = 6,127,455,626.72/85,472.60
  6. Step 6: Final answer
    x = 71,689.12

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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.