Home / 91,810.14-126,731.43-54,115.98

Finding the Fourth Proportional to 91,810.14, 126,731.43 and 54,115.98

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Solution

The fourth proportional to 91,810.14, 126,731.43 and 54,115.98 is: 74,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,810.14 : 126,731.43 = 54,115.98 : x
  2. Step 2: Convert to fraction form
    91,810.14/126,731.43 = 54,115.98/x
  3. Step 3: Cross multiply
    91,810.14x = 126,731.43 × 54,115.98
  4. Step 4: Simplify right side
    91,810.14x = 6,858,195,531.25
  5. Step 5: Solve for x
    x = 6,858,195,531.25/91,810.14
  6. Step 6: Final answer
    x = 74,699.76

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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.