Home / 86,983.33-120,034.95-51,175.65

Finding the Fourth Proportional to 86,983.33, 120,034.95 and 51,175.65

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Solution

The fourth proportional to 86,983.33, 120,034.95 and 51,175.65 is: 70,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983.33 : 120,034.95 = 51,175.65 : x
  2. Step 2: Convert to fraction form
    86,983.33/120,034.95 = 51,175.65/x
  3. Step 3: Cross multiply
    86,983.33x = 120,034.95 × 51,175.65
  4. Step 4: Simplify right side
    86,983.33x = 6,142,865,988.79
  5. Step 5: Solve for x
    x = 6,142,865,988.79/86,983.33
  6. Step 6: Final answer
    x = 70,621.19

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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.