Home / 84,725.16-126,999.06-28,545.86

Finding the Fourth Proportional to 84,725.16, 126,999.06 and 28,545.86

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Solution

The fourth proportional to 84,725.16, 126,999.06 and 28,545.86 is: 42,788.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,725.16 : 126,999.06 = 28,545.86 : x
  2. Step 2: Convert to fraction form
    84,725.16/126,999.06 = 28,545.86/x
  3. Step 3: Cross multiply
    84,725.16x = 126,999.06 × 28,545.86
  4. Step 4: Simplify right side
    84,725.16x = 3,625,297,386.89
  5. Step 5: Solve for x
    x = 3,625,297,386.89/84,725.16
  6. Step 6: Final answer
    x = 42,788.91

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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.