Home / 81,434.92-112,378.86-45,624.70

Finding the Fourth Proportional to 81,434.92, 112,378.86 and 45,624.70

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Solution

The fourth proportional to 81,434.92, 112,378.86 and 45,624.70 is: 62,961.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,434.92 : 112,378.86 = 45,624.70 : x
  2. Step 2: Convert to fraction form
    81,434.92/112,378.86 = 45,624.70/x
  3. Step 3: Cross multiply
    81,434.92x = 112,378.86 × 45,624.70
  4. Step 4: Simplify right side
    81,434.92x = 5,127,251,773.84
  5. Step 5: Solve for x
    x = 5,127,251,773.84/81,434.92
  6. Step 6: Final answer
    x = 62,961.34

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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.