Home / 91,620.10-126,427.17-51,325.31

Finding the Fourth Proportional to 91,620.10, 126,427.17 and 51,325.31

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Solution

The fourth proportional to 91,620.10, 126,427.17 and 51,325.31 is: 70,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,620.10 : 126,427.17 = 51,325.31 : x
  2. Step 2: Convert to fraction form
    91,620.10/126,427.17 = 51,325.31/x
  3. Step 3: Cross multiply
    91,620.10x = 126,427.17 × 51,325.31
  4. Step 4: Simplify right side
    91,620.10x = 6,488,913,692.67
  5. Step 5: Solve for x
    x = 6,488,913,692.67/91,620.10
  6. Step 6: Final answer
    x = 70,824.13

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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.