Home / 121,553.12-182,328.23-31,587.91

Finding the Fourth Proportional to 121,553.12, 182,328.23 and 31,587.91

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Solution

The fourth proportional to 121,553.12, 182,328.23 and 31,587.91 is: 47,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,553.12 : 182,328.23 = 31,587.91 : x
  2. Step 2: Convert to fraction form
    121,553.12/182,328.23 = 31,587.91/x
  3. Step 3: Cross multiply
    121,553.12x = 182,328.23 × 31,587.91
  4. Step 4: Simplify right side
    121,553.12x = 5,759,367,342.85
  5. Step 5: Solve for x
    x = 5,759,367,342.85/121,553.12
  6. Step 6: Final answer
    x = 47,381.48

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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.