Home / 51,738.47-77,607.66-13,787.75

Finding the Fourth Proportional to 51,738.47, 77,607.66 and 13,787.75

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Solution

The fourth proportional to 51,738.47, 77,607.66 and 13,787.75 is: 20,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,738.47 : 77,607.66 = 13,787.75 : x
  2. Step 2: Convert to fraction form
    51,738.47/77,607.66 = 13,787.75/x
  3. Step 3: Cross multiply
    51,738.47x = 77,607.66 × 13,787.75
  4. Step 4: Simplify right side
    51,738.47x = 1,070,034,626.13
  5. Step 5: Solve for x
    x = 1,070,034,626.13/51,738.47
  6. Step 6: Final answer
    x = 20,681.61

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1.5x scale

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.