Home / 51,159.38-76,715.84-21,561.08

Finding the Fourth Proportional to 51,159.38, 76,715.84 and 21,561.08

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Solution

The fourth proportional to 51,159.38, 76,715.84 and 21,561.08 is: 32,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.38 : 76,715.84 = 21,561.08 : x
  2. Step 2: Convert to fraction form
    51,159.38/76,715.84 = 21,561.08/x
  3. Step 3: Cross multiply
    51,159.38x = 76,715.84 × 21,561.08
  4. Step 4: Simplify right side
    51,159.38x = 1,654,075,872.12
  5. Step 5: Solve for x
    x = 1,654,075,872.12/51,159.38
  6. Step 6: Final answer
    x = 32,331.82

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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.