Home / 81,267.16-112,217.90-51,102.96

Finding the Fourth Proportional to 81,267.16, 112,217.90 and 51,102.96

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Solution

The fourth proportional to 81,267.16, 112,217.90 and 51,102.96 is: 70,565.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.16 : 112,217.90 = 51,102.96 : x
  2. Step 2: Convert to fraction form
    81,267.16/112,217.90 = 51,102.96/x
  3. Step 3: Cross multiply
    81,267.16x = 112,217.90 × 51,102.96
  4. Step 4: Simplify right side
    81,267.16x = 5,734,666,854.98
  5. Step 5: Solve for x
    x = 5,734,666,854.98/81,267.16
  6. Step 6: Final answer
    x = 70,565.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.