Home / 51,384.74-77,068.01-13,947.72

Finding the Fourth Proportional to 51,384.74, 77,068.01 and 13,947.72

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Solution

The fourth proportional to 51,384.74, 77,068.01 and 13,947.72 is: 20,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.74 : 77,068.01 = 13,947.72 : x
  2. Step 2: Convert to fraction form
    51,384.74/77,068.01 = 13,947.72/x
  3. Step 3: Cross multiply
    51,384.74x = 77,068.01 × 13,947.72
  4. Step 4: Simplify right side
    51,384.74x = 1,074,923,024.44
  5. Step 5: Solve for x
    x = 1,074,923,024.44/51,384.74
  6. Step 6: Final answer
    x = 20,919.11

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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.