Home / 79,250.07-109,376.31-49,045.13

Finding the Fourth Proportional to 79,250.07, 109,376.31 and 49,045.13

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Solution

The fourth proportional to 79,250.07, 109,376.31 and 49,045.13 is: 67,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,250.07 : 109,376.31 = 49,045.13 : x
  2. Step 2: Convert to fraction form
    79,250.07/109,376.31 = 49,045.13/x
  3. Step 3: Cross multiply
    79,250.07x = 109,376.31 × 49,045.13
  4. Step 4: Simplify right side
    79,250.07x = 5,364,375,342.87
  5. Step 5: Solve for x
    x = 5,364,375,342.87/79,250.07
  6. Step 6: Final answer
    x = 67,689.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.