Home / 91,575.24-126,376.60-51,288.88

Finding the Fourth Proportional to 91,575.24, 126,376.60 and 51,288.88

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Solution

The fourth proportional to 91,575.24, 126,376.60 and 51,288.88 is: 70,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,575.24 : 126,376.60 = 51,288.88 : x
  2. Step 2: Convert to fraction form
    91,575.24/126,376.60 = 51,288.88/x
  3. Step 3: Cross multiply
    91,575.24x = 126,376.60 × 51,288.88
  4. Step 4: Simplify right side
    91,575.24x = 6,481,714,272.21
  5. Step 5: Solve for x
    x = 6,481,714,272.21/91,575.24
  6. Step 6: Final answer
    x = 70,780.21

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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.