Home / 99,999.62-138,034.20-57,575.06

Finding the Fourth Proportional to 99,999.62, 138,034.20 and 57,575.06

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Solution

The fourth proportional to 99,999.62, 138,034.20 and 57,575.06 is: 79,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,999.62 : 138,034.20 = 57,575.06 : x
  2. Step 2: Convert to fraction form
    99,999.62/138,034.20 = 57,575.06/x
  3. Step 3: Cross multiply
    99,999.62x = 138,034.20 × 57,575.06
  4. Step 4: Simplify right side
    99,999.62x = 7,947,327,347.05
  5. Step 5: Solve for x
    x = 7,947,327,347.05/99,999.62
  6. Step 6: Final answer
    x = 79,473.58

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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.