Home / 81,366.31-112,295.10-45,549.40

Finding the Fourth Proportional to 81,366.31, 112,295.10 and 45,549.40

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Solution

The fourth proportional to 81,366.31, 112,295.10 and 45,549.40 is: 62,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,366.31 : 112,295.10 = 45,549.40 : x
  2. Step 2: Convert to fraction form
    81,366.31/112,295.10 = 45,549.40/x
  3. Step 3: Cross multiply
    81,366.31x = 112,295.10 × 45,549.40
  4. Step 4: Simplify right side
    81,366.31x = 5,114,974,654.45
  5. Step 5: Solve for x
    x = 5,114,974,654.45/81,366.31
  6. Step 6: Final answer
    x = 62,863.54

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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.