Home / 90,937.56-125,500.14-55,129.08

Finding the Fourth Proportional to 90,937.56, 125,500.14 and 55,129.08

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Solution

The fourth proportional to 90,937.56, 125,500.14 and 55,129.08 is: 76,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,937.56 : 125,500.14 = 55,129.08 : x
  2. Step 2: Convert to fraction form
    90,937.56/125,500.14 = 55,129.08/x
  3. Step 3: Cross multiply
    90,937.56x = 125,500.14 × 55,129.08
  4. Step 4: Simplify right side
    90,937.56x = 6,918,707,258.07
  5. Step 5: Solve for x
    x = 6,918,707,258.07/90,937.56
  6. Step 6: Final answer
    x = 76,081.95

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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.