Home / 49,686.75-74,530.17-12,750.75

Finding the Fourth Proportional to 49,686.75, 74,530.17 and 12,750.75

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Solution

The fourth proportional to 49,686.75, 74,530.17 and 12,750.75 is: 19,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,686.75 : 74,530.17 = 12,750.75 : x
  2. Step 2: Convert to fraction form
    49,686.75/74,530.17 = 12,750.75/x
  3. Step 3: Cross multiply
    49,686.75x = 74,530.17 × 12,750.75
  4. Step 4: Simplify right side
    49,686.75x = 950,315,565.13
  5. Step 5: Solve for x
    x = 950,315,565.13/49,686.75
  6. Step 6: Final answer
    x = 19,126.14

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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.