Home / 81,550.80-112,531.06-45,733.40

Finding the Fourth Proportional to 81,550.80, 112,531.06 and 45,733.40

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Solution

The fourth proportional to 81,550.80, 112,531.06 and 45,733.40 is: 63,107.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,550.80 : 112,531.06 = 45,733.40 : x
  2. Step 2: Convert to fraction form
    81,550.80/112,531.06 = 45,733.40/x
  3. Step 3: Cross multiply
    81,550.80x = 112,531.06 × 45,733.40
  4. Step 4: Simplify right side
    81,550.80x = 5,146,427,979.40
  5. Step 5: Solve for x
    x = 5,146,427,979.40/81,550.80
  6. Step 6: Final answer
    x = 63,107.02

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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.