Home / 84,053.98-126,121.02-52,455.46

Finding the Fourth Proportional to 84,053.98, 126,121.02 and 52,455.46

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Solution

The fourth proportional to 84,053.98, 126,121.02 and 52,455.46 is: 78,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,053.98 : 126,121.02 = 52,455.46 : x
  2. Step 2: Convert to fraction form
    84,053.98/126,121.02 = 52,455.46/x
  3. Step 3: Cross multiply
    84,053.98x = 126,121.02 × 52,455.46
  4. Step 4: Simplify right side
    84,053.98x = 6,615,736,119.77
  5. Step 5: Solve for x
    x = 6,615,736,119.77/84,053.98
  6. Step 6: Final answer
    x = 78,708.18

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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.