Home / 87,049.65-120,084.30-56,852.65

Finding the Fourth Proportional to 87,049.65, 120,084.30 and 56,852.65

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Solution

The fourth proportional to 87,049.65, 120,084.30 and 56,852.65 is: 78,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,049.65 : 120,084.30 = 56,852.65 : x
  2. Step 2: Convert to fraction form
    87,049.65/120,084.30 = 56,852.65/x
  3. Step 3: Cross multiply
    87,049.65x = 120,084.30 × 56,852.65
  4. Step 4: Simplify right side
    87,049.65x = 6,827,110,378.18
  5. Step 5: Solve for x
    x = 6,827,110,378.18/87,049.65
  6. Step 6: Final answer
    x = 78,427.78

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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.