Home / 51,385.74-77,069.51-13,948.72

Finding the Fourth Proportional to 51,385.74, 77,069.51 and 13,948.72

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Solution

The fourth proportional to 51,385.74, 77,069.51 and 13,948.72 is: 20,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.74 : 77,069.51 = 13,948.72 : x
  2. Step 2: Convert to fraction form
    51,385.74/77,069.51 = 13,948.72/x
  3. Step 3: Cross multiply
    51,385.74x = 77,069.51 × 13,948.72
  4. Step 4: Simplify right side
    51,385.74x = 1,075,021,015.53
  5. Step 5: Solve for x
    x = 1,075,021,015.53/51,385.74
  6. Step 6: Final answer
    x = 20,920.61

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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.