Home / 79,520.31-119,295.09-26,215.47

Finding the Fourth Proportional to 79,520.31, 119,295.09 and 26,215.47

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Solution

The fourth proportional to 79,520.31, 119,295.09 and 26,215.47 is: 39,328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,520.31 : 119,295.09 = 26,215.47 : x
  2. Step 2: Convert to fraction form
    79,520.31/119,295.09 = 26,215.47/x
  3. Step 3: Cross multiply
    79,520.31x = 119,295.09 × 26,215.47
  4. Step 4: Simplify right side
    79,520.31x = 3,127,376,853.04
  5. Step 5: Solve for x
    x = 3,127,376,853.04/79,520.31
  6. Step 6: Final answer
    x = 39,328.03

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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.