Home / 81,673.40-112,705.26-45,864.92

Finding the Fourth Proportional to 81,673.40, 112,705.26 and 45,864.92

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Solution

The fourth proportional to 81,673.40, 112,705.26 and 45,864.92 is: 63,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673.40 : 112,705.26 = 45,864.92 : x
  2. Step 2: Convert to fraction form
    81,673.40/112,705.26 = 45,864.92/x
  3. Step 3: Cross multiply
    81,673.40x = 112,705.26 × 45,864.92
  4. Step 4: Simplify right side
    81,673.40x = 5,169,217,169.95
  5. Step 5: Solve for x
    x = 5,169,217,169.95/81,673.40
  6. Step 6: Final answer
    x = 63,291.32

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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.