Home / 79,250.31-109,376.63-49,045.36

Finding the Fourth Proportional to 79,250.31, 109,376.63 and 49,045.36

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Solution

The fourth proportional to 79,250.31, 109,376.63 and 49,045.36 is: 67,689.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,250.31 : 109,376.63 = 49,045.36 : x
  2. Step 2: Convert to fraction form
    79,250.31/109,376.63 = 49,045.36/x
  3. Step 3: Cross multiply
    79,250.31x = 109,376.63 × 49,045.36
  4. Step 4: Simplify right side
    79,250.31x = 5,364,416,193.94
  5. Step 5: Solve for x
    x = 5,364,416,193.94/79,250.31
  6. Step 6: Final answer
    x = 67,689.53

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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.