Home / 99,549.38-137,378.14-54,837.38

Finding the Fourth Proportional to 99,549.38, 137,378.14 and 54,837.38

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Solution

The fourth proportional to 99,549.38, 137,378.14 and 54,837.38 is: 75,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,549.38 : 137,378.14 = 54,837.38 : x
  2. Step 2: Convert to fraction form
    99,549.38/137,378.14 = 54,837.38/x
  3. Step 3: Cross multiply
    99,549.38x = 137,378.14 × 54,837.38
  4. Step 4: Simplify right side
    99,549.38x = 7,533,457,266.87
  5. Step 5: Solve for x
    x = 7,533,457,266.87/99,549.38
  6. Step 6: Final answer
    x = 75,675.58

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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.