Home / 45,599.76-68,421.30-31,581.36

Finding the Fourth Proportional to 45,599.76, 68,421.30 and 31,581.36

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Solution

The fourth proportional to 45,599.76, 68,421.30 and 31,581.36 is: 47,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,599.76 : 68,421.30 = 31,581.36 : x
  2. Step 2: Convert to fraction form
    45,599.76/68,421.30 = 31,581.36/x
  3. Step 3: Cross multiply
    45,599.76x = 68,421.30 × 31,581.36
  4. Step 4: Simplify right side
    45,599.76x = 2,160,837,706.97
  5. Step 5: Solve for x
    x = 2,160,837,706.97/45,599.76
  6. Step 6: Final answer
    x = 47,387.04

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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.