Home / 40,135.44-60,176.88-20,386.56

Finding the Fourth Proportional to 40,135.44, 60,176.88 and 20,386.56

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Solution

The fourth proportional to 40,135.44, 60,176.88 and 20,386.56 is: 30,566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.44 : 60,176.88 = 20,386.56 : x
  2. Step 2: Convert to fraction form
    40,135.44/60,176.88 = 20,386.56/x
  3. Step 3: Cross multiply
    40,135.44x = 60,176.88 × 20,386.56
  4. Step 4: Simplify right side
    40,135.44x = 1,226,799,574.73
  5. Step 5: Solve for x
    x = 1,226,799,574.73/40,135.44
  6. Step 6: Final answer
    x = 30,566.49

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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.