Home / 121,079.53-181,617.27-54,472.51

Finding the Fourth Proportional to 121,079.53, 181,617.27 and 54,472.51

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Solution

The fourth proportional to 121,079.53, 181,617.27 and 54,472.51 is: 81,707.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,079.53 : 181,617.27 = 54,472.51 : x
  2. Step 2: Convert to fraction form
    121,079.53/181,617.27 = 54,472.51/x
  3. Step 3: Cross multiply
    121,079.53x = 181,617.27 × 54,472.51
  4. Step 4: Simplify right side
    121,079.53x = 9,893,148,556.25
  5. Step 5: Solve for x
    x = 9,893,148,556.25/121,079.53
  6. Step 6: Final answer
    x = 81,707.85

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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.