Home / 84,292.02-126,456.53-31,701.51

Finding the Fourth Proportional to 84,292.02, 126,456.53 and 31,701.51

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Solution

The fourth proportional to 84,292.02, 126,456.53 and 31,701.51 is: 47,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,292.02 : 126,456.53 = 31,701.51 : x
  2. Step 2: Convert to fraction form
    84,292.02/126,456.53 = 31,701.51/x
  3. Step 3: Cross multiply
    84,292.02x = 126,456.53 × 31,701.51
  4. Step 4: Simplify right side
    84,292.02x = 4,008,862,791.85
  5. Step 5: Solve for x
    x = 4,008,862,791.85/84,292.02
  6. Step 6: Final answer
    x = 47,559.22

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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.