Home / 84,189.83-126,247.69-31,562.41

Finding the Fourth Proportional to 84,189.83, 126,247.69 and 31,562.41

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Solution

The fourth proportional to 84,189.83, 126,247.69 and 31,562.41 is: 47,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,189.83 : 126,247.69 = 31,562.41 : x
  2. Step 2: Convert to fraction form
    84,189.83/126,247.69 = 31,562.41/x
  3. Step 3: Cross multiply
    84,189.83x = 126,247.69 × 31,562.41
  4. Step 4: Simplify right side
    84,189.83x = 3,984,681,225.11
  5. Step 5: Solve for x
    x = 3,984,681,225.11/84,189.83
  6. Step 6: Final answer
    x = 47,329.72

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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.