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Finding the Fourth Proportional to 81,675.40, 112,708.02 and 45,866.92

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Solution

The fourth proportional to 81,675.40, 112,708.02 and 45,866.92 is: 63,294.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675.40 : 112,708.02 = 45,866.92 : x
  2. Step 2: Convert to fraction form
    81,675.40/112,708.02 = 45,866.92/x
  3. Step 3: Cross multiply
    81,675.40x = 112,708.02 × 45,866.92
  4. Step 4: Simplify right side
    81,675.40x = 5,169,569,736.70
  5. Step 5: Solve for x
    x = 5,169,569,736.70/81,675.40
  6. Step 6: Final answer
    x = 63,294.09

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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.