Home / 90,429.95-124,767.87-71,250.26

Finding the Fourth Proportional to 90,429.95, 124,767.87 and 71,250.26

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Solution

The fourth proportional to 90,429.95, 124,767.87 and 71,250.26 is: 98,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,429.95 : 124,767.87 = 71,250.26 : x
  2. Step 2: Convert to fraction form
    90,429.95/124,767.87 = 71,250.26/x
  3. Step 3: Cross multiply
    90,429.95x = 124,767.87 × 71,250.26
  4. Step 4: Simplify right side
    90,429.95x = 8,889,743,177.15
  5. Step 5: Solve for x
    x = 8,889,743,177.15/90,429.95
  6. Step 6: Final answer
    x = 98,305.30

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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.