Home / 83,381.74-115,065.98-45,140.28

Finding the Fourth Proportional to 83,381.74, 115,065.98 and 45,140.28

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Solution

The fourth proportional to 83,381.74, 115,065.98 and 45,140.28 is: 62,293.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,381.74 : 115,065.98 = 45,140.28 : x
  2. Step 2: Convert to fraction form
    83,381.74/115,065.98 = 45,140.28/x
  3. Step 3: Cross multiply
    83,381.74x = 115,065.98 × 45,140.28
  4. Step 4: Simplify right side
    83,381.74x = 5,194,110,454.85
  5. Step 5: Solve for x
    x = 5,194,110,454.85/83,381.74
  6. Step 6: Final answer
    x = 62,293.14

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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.