Home / 84,271.28-126,358-39,897.66

Finding the Fourth Proportional to 84,271.28, 126,358 and 39,897.66

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Solution

The fourth proportional to 84,271.28, 126,358 and 39,897.66 is: 59,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,271.28 : 126,358 = 39,897.66 : x
  2. Step 2: Convert to fraction form
    84,271.28/126,358 = 39,897.66/x
  3. Step 3: Cross multiply
    84,271.28x = 126,358 × 39,897.66
  4. Step 4: Simplify right side
    84,271.28x = 5,041,388,522.28
  5. Step 5: Solve for x
    x = 5,041,388,522.28/84,271.28
  6. Step 6: Final answer
    x = 59,823.33

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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.