Home / 91,393.12-137,104.08-29,077.60

Finding the Fourth Proportional to 91,393.12, 137,104.08 and 29,077.60

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Solution

The fourth proportional to 91,393.12, 137,104.08 and 29,077.60 is: 43,620.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,393.12 : 137,104.08 = 29,077.60 : x
  2. Step 2: Convert to fraction form
    91,393.12/137,104.08 = 29,077.60/x
  3. Step 3: Cross multiply
    91,393.12x = 137,104.08 × 29,077.60
  4. Step 4: Simplify right side
    91,393.12x = 3,986,657,596.61
  5. Step 5: Solve for x
    x = 3,986,657,596.61/91,393.12
  6. Step 6: Final answer
    x = 43,620.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.