Home / 91,619.28-126,433.44-51,332.32

Finding the Fourth Proportional to 91,619.28, 126,433.44 and 51,332.32

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Solution

The fourth proportional to 91,619.28, 126,433.44 and 51,332.32 is: 70,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,619.28 : 126,433.44 = 51,332.32 : x
  2. Step 2: Convert to fraction form
    91,619.28/126,433.44 = 51,332.32/x
  3. Step 3: Cross multiply
    91,619.28x = 126,433.44 × 51,332.32
  4. Step 4: Simplify right side
    91,619.28x = 6,490,121,800.78
  5. Step 5: Solve for x
    x = 6,490,121,800.78/91,619.28
  6. Step 6: Final answer
    x = 70,837.95

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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.