Home / 67,721.57-93,456.45-40,858.88

Finding the Fourth Proportional to 67,721.57, 93,456.45 and 40,858.88

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Solution

The fourth proportional to 67,721.57, 93,456.45 and 40,858.88 is: 56,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,721.57 : 93,456.45 = 40,858.88 : x
  2. Step 2: Convert to fraction form
    67,721.57/93,456.45 = 40,858.88/x
  3. Step 3: Cross multiply
    67,721.57x = 93,456.45 × 40,858.88
  4. Step 4: Simplify right side
    67,721.57x = 3,818,526,122.16
  5. Step 5: Solve for x
    x = 3,818,526,122.16/67,721.57
  6. Step 6: Final answer
    x = 56,385.67

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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.