Home / 81,017.91-121,444.83-38,836.17

Finding the Fourth Proportional to 81,017.91, 121,444.83 and 38,836.17

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Solution

The fourth proportional to 81,017.91, 121,444.83 and 38,836.17 is: 58,214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,017.91 : 121,444.83 = 38,836.17 : x
  2. Step 2: Convert to fraction form
    81,017.91/121,444.83 = 38,836.17/x
  3. Step 3: Cross multiply
    81,017.91x = 121,444.83 × 38,836.17
  4. Step 4: Simplify right side
    81,017.91x = 4,716,452,063.50
  5. Step 5: Solve for x
    x = 4,716,452,063.50/81,017.91
  6. Step 6: Final answer
    x = 58,214.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.