Home / 91,557.25-126,342.88-50,718.61

Finding the Fourth Proportional to 91,557.25, 126,342.88 and 50,718.61

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Solution

The fourth proportional to 91,557.25, 126,342.88 and 50,718.61 is: 69,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,557.25 : 126,342.88 = 50,718.61 : x
  2. Step 2: Convert to fraction form
    91,557.25/126,342.88 = 50,718.61/x
  3. Step 3: Cross multiply
    91,557.25x = 126,342.88 × 50,718.61
  4. Step 4: Simplify right side
    91,557.25x = 6,407,934,814.34
  5. Step 5: Solve for x
    x = 6,407,934,814.34/91,557.25
  6. Step 6: Final answer
    x = 69,988.29

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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.