Home / 86,983.02-120,034.53-51,175.33

Finding the Fourth Proportional to 86,983.02, 120,034.53 and 51,175.33

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Solution

The fourth proportional to 86,983.02, 120,034.53 and 51,175.33 is: 70,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983.02 : 120,034.53 = 51,175.33 : x
  2. Step 2: Convert to fraction form
    86,983.02/120,034.53 = 51,175.33/x
  3. Step 3: Cross multiply
    86,983.02x = 120,034.53 × 51,175.33
  4. Step 4: Simplify right side
    86,983.02x = 6,142,806,428.27
  5. Step 5: Solve for x
    x = 6,142,806,428.27/86,983.02
  6. Step 6: Final answer
    x = 70,620.76

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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.