Home / 40,386.56-60,578.88-12,306.56

Finding the Fourth Proportional to 40,386.56, 60,578.88 and 12,306.56

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Solution

The fourth proportional to 40,386.56, 60,578.88 and 12,306.56 is: 18,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386.56 : 60,578.88 = 12,306.56 : x
  2. Step 2: Convert to fraction form
    40,386.56/60,578.88 = 12,306.56/x
  3. Step 3: Cross multiply
    40,386.56x = 60,578.88 × 12,306.56
  4. Step 4: Simplify right side
    40,386.56x = 745,517,621.45
  5. Step 5: Solve for x
    x = 745,517,621.45/40,386.56
  6. Step 6: Final answer
    x = 18,459.55

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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.