Home / 99,427.13-137,209.46-54,715.13

Finding the Fourth Proportional to 99,427.13, 137,209.46 and 54,715.13

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Solution

The fourth proportional to 99,427.13, 137,209.46 and 54,715.13 is: 75,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,427.13 : 137,209.46 = 54,715.13 : x
  2. Step 2: Convert to fraction form
    99,427.13/137,209.46 = 54,715.13/x
  3. Step 3: Cross multiply
    99,427.13x = 137,209.46 × 54,715.13
  4. Step 4: Simplify right side
    99,427.13x = 7,507,432,481.51
  5. Step 5: Solve for x
    x = 7,507,432,481.51/99,427.13
  6. Step 6: Final answer
    x = 75,506.88

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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.