Home / 51,719.31-77,578.97-14,278.14

Finding the Fourth Proportional to 51,719.31, 77,578.97 and 14,278.14

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Solution

The fourth proportional to 51,719.31, 77,578.97 and 14,278.14 is: 21,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.31 : 77,578.97 = 14,278.14 : x
  2. Step 2: Convert to fraction form
    51,719.31/77,578.97 = 14,278.14/x
  3. Step 3: Cross multiply
    51,719.31x = 77,578.97 × 14,278.14
  4. Step 4: Simplify right side
    51,719.31x = 1,107,683,323.33
  5. Step 5: Solve for x
    x = 1,107,683,323.33/51,719.31
  6. Step 6: Final answer
    x = 21,417.21

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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.