Home / 91,774.77-126,647.09-51,487.61

Finding the Fourth Proportional to 91,774.77, 126,647.09 and 51,487.61

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Solution

The fourth proportional to 91,774.77, 126,647.09 and 51,487.61 is: 71,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,774.77 : 126,647.09 = 51,487.61 : x
  2. Step 2: Convert to fraction form
    91,774.77/126,647.09 = 51,487.61/x
  3. Step 3: Cross multiply
    91,774.77x = 126,647.09 × 51,487.61
  4. Step 4: Simplify right side
    91,774.77x = 6,520,755,086.88
  5. Step 5: Solve for x
    x = 6,520,755,086.88/91,774.77
  6. Step 6: Final answer
    x = 71,051.72

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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.