Home / 87,019.06-120,083.97-51,211.18

Finding the Fourth Proportional to 87,019.06, 120,083.97 and 51,211.18

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Solution

The fourth proportional to 87,019.06, 120,083.97 and 51,211.18 is: 70,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,019.06 : 120,083.97 = 51,211.18 : x
  2. Step 2: Convert to fraction form
    87,019.06/120,083.97 = 51,211.18/x
  3. Step 3: Cross multiply
    87,019.06x = 120,083.97 × 51,211.18
  4. Step 4: Simplify right side
    87,019.06x = 6,149,641,802.78
  5. Step 5: Solve for x
    x = 6,149,641,802.78/87,019.06
  6. Step 6: Final answer
    x = 70,670.06

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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.