Home / 40,712.72-61,077.80-12,632.16

Finding the Fourth Proportional to 40,712.72, 61,077.80 and 12,632.16

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Solution

The fourth proportional to 40,712.72, 61,077.80 and 12,632.16 is: 18,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,712.72 : 61,077.80 = 12,632.16 : x
  2. Step 2: Convert to fraction form
    40,712.72/61,077.80 = 12,632.16/x
  3. Step 3: Cross multiply
    40,712.72x = 61,077.80 × 12,632.16
  4. Step 4: Simplify right side
    40,712.72x = 771,544,542.05
  5. Step 5: Solve for x
    x = 771,544,542.05/40,712.72
  6. Step 6: Final answer
    x = 18,950.95

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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.