Home / 87,363.45-120,264.03-64,659.65

Finding the Fourth Proportional to 87,363.45, 120,264.03 and 64,659.65

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Solution

The fourth proportional to 87,363.45, 120,264.03 and 64,659.65 is: 89,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,363.45 : 120,264.03 = 64,659.65 : x
  2. Step 2: Convert to fraction form
    87,363.45/120,264.03 = 64,659.65/x
  3. Step 3: Cross multiply
    87,363.45x = 120,264.03 × 64,659.65
  4. Step 4: Simplify right side
    87,363.45x = 7,776,229,486.07
  5. Step 5: Solve for x
    x = 7,776,229,486.07/87,363.45
  6. Step 6: Final answer
    x = 89,010.10

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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.