Home / 82,479.47-124,337.27-76,986.66

Finding the Fourth Proportional to 82,479.47, 124,337.27 and 76,986.66

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Solution

The fourth proportional to 82,479.47, 124,337.27 and 76,986.66 is: 116,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,479.47 : 124,337.27 = 76,986.66 : x
  2. Step 2: Convert to fraction form
    82,479.47/124,337.27 = 76,986.66/x
  3. Step 3: Cross multiply
    82,479.47x = 124,337.27 × 76,986.66
  4. Step 4: Simplify right side
    82,479.47x = 9,572,311,130.82
  5. Step 5: Solve for x
    x = 9,572,311,130.82/82,479.47
  6. Step 6: Final answer
    x = 116,056.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.