Home / 84,411.15-126,616.73-34,458.45

Finding the Fourth Proportional to 84,411.15, 126,616.73 and 34,458.45

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Solution

The fourth proportional to 84,411.15, 126,616.73 and 34,458.45 is: 51,687.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,411.15 : 126,616.73 = 34,458.45 : x
  2. Step 2: Convert to fraction form
    84,411.15/126,616.73 = 34,458.45/x
  3. Step 3: Cross multiply
    84,411.15x = 126,616.73 × 34,458.45
  4. Step 4: Simplify right side
    84,411.15x = 4,363,016,087.58
  5. Step 5: Solve for x
    x = 4,363,016,087.58/84,411.15
  6. Step 6: Final answer
    x = 51,687.68

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1.5x scale

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.