Home / 90,837.72-125,344.86-50,540.76

Finding the Fourth Proportional to 90,837.72, 125,344.86 and 50,540.76

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Solution

The fourth proportional to 90,837.72, 125,344.86 and 50,540.76 is: 69,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,837.72 : 125,344.86 = 50,540.76 : x
  2. Step 2: Convert to fraction form
    90,837.72/125,344.86 = 50,540.76/x
  3. Step 3: Cross multiply
    90,837.72x = 125,344.86 × 50,540.76
  4. Step 4: Simplify right side
    90,837.72x = 6,335,024,486.49
  5. Step 5: Solve for x
    x = 6,335,024,486.49/90,837.72
  6. Step 6: Final answer
    x = 69,740.02

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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.