Home / 82,742.88-124,122.80-51,569.76

Finding the Fourth Proportional to 82,742.88, 124,122.80 and 51,569.76

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Solution

The fourth proportional to 82,742.88, 124,122.80 and 51,569.76 is: 77,359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,742.88 : 124,122.80 = 51,569.76 : x
  2. Step 2: Convert to fraction form
    82,742.88/124,122.80 = 51,569.76/x
  3. Step 3: Cross multiply
    82,742.88x = 124,122.80 × 51,569.76
  4. Step 4: Simplify right side
    82,742.88x = 6,400,983,006.53
  5. Step 5: Solve for x
    x = 6,400,983,006.53/82,742.88
  6. Step 6: Final answer
    x = 77,359.93

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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.