Home / 81,476.68-112,227.50-57,561.83

Finding the Fourth Proportional to 81,476.68, 112,227.50 and 57,561.83

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Solution

The fourth proportional to 81,476.68, 112,227.50 and 57,561.83 is: 79,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,476.68 : 112,227.50 = 57,561.83 : x
  2. Step 2: Convert to fraction form
    81,476.68/112,227.50 = 57,561.83/x
  3. Step 3: Cross multiply
    81,476.68x = 112,227.50 × 57,561.83
  4. Step 4: Simplify right side
    81,476.68x = 6,460,019,988.52
  5. Step 5: Solve for x
    x = 6,460,019,988.52/81,476.68
  6. Step 6: Final answer
    x = 79,286.74

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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.