Home / 91,620.06-137,408.60-51,656.28

Finding the Fourth Proportional to 91,620.06, 137,408.60 and 51,656.28

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Solution

The fourth proportional to 91,620.06, 137,408.60 and 51,656.28 is: 77,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,620.06 : 137,408.60 = 51,656.28 : x
  2. Step 2: Convert to fraction form
    91,620.06/137,408.60 = 51,656.28/x
  3. Step 3: Cross multiply
    91,620.06x = 137,408.60 × 51,656.28
  4. Step 4: Simplify right side
    91,620.06x = 7,098,017,116.01
  5. Step 5: Solve for x
    x = 7,098,017,116.01/91,620.06
  6. Step 6: Final answer
    x = 77,472.30

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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.