Home / 83,085.68-124,644.00-26,920.78

Finding the Fourth Proportional to 83,085.68, 124,644.00 and 26,920.78

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Solution

The fourth proportional to 83,085.68, 124,644.00 and 26,920.78 is: 40,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,085.68 : 124,644.00 = 26,920.78 : x
  2. Step 2: Convert to fraction form
    83,085.68/124,644.00 = 26,920.78/x
  3. Step 3: Cross multiply
    83,085.68x = 124,644.00 × 26,920.78
  4. Step 4: Simplify right side
    83,085.68x = 3,355,513,491.66
  5. Step 5: Solve for x
    x = 3,355,513,491.66/83,085.68
  6. Step 6: Final answer
    x = 40,386.18

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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.