Home / 91,822.13-126,726.89-51,538.10

Finding the Fourth Proportional to 91,822.13, 126,726.89 and 51,538.10

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Solution

The fourth proportional to 91,822.13, 126,726.89 and 51,538.10 is: 71,129.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,822.13 : 126,726.89 = 51,538.10 : x
  2. Step 2: Convert to fraction form
    91,822.13/126,726.89 = 51,538.10/x
  3. Step 3: Cross multiply
    91,822.13x = 126,726.89 × 51,538.10
  4. Step 4: Simplify right side
    91,822.13x = 6,531,262,238.18
  5. Step 5: Solve for x
    x = 6,531,262,238.18/91,822.13
  6. Step 6: Final answer
    x = 71,129.50

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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.