Home / 90,656.64-125,105.76-50,376.96

Finding the Fourth Proportional to 90,656.64, 125,105.76 and 50,376.96

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Solution

The fourth proportional to 90,656.64, 125,105.76 and 50,376.96 is: 69,519.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,656.64 : 125,105.76 = 50,376.96 : x
  2. Step 2: Convert to fraction form
    90,656.64/125,105.76 = 50,376.96/x
  3. Step 3: Cross multiply
    90,656.64x = 125,105.76 × 50,376.96
  4. Step 4: Simplify right side
    90,656.64x = 6,302,447,867.29
  5. Step 5: Solve for x
    x = 6,302,447,867.29/90,656.64
  6. Step 6: Final answer
    x = 69,519.98

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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.