Home / 99,549.12-137,377.80-54,837.12

Finding the Fourth Proportional to 99,549.12, 137,377.80 and 54,837.12

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Solution

The fourth proportional to 99,549.12, 137,377.80 and 54,837.12 is: 75,675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,549.12 : 137,377.80 = 54,837.12 : x
  2. Step 2: Convert to fraction form
    99,549.12/137,377.80 = 54,837.12/x
  3. Step 3: Cross multiply
    99,549.12x = 137,377.80 × 54,837.12
  4. Step 4: Simplify right side
    99,549.12x = 7,533,402,903.94
  5. Step 5: Solve for x
    x = 7,533,402,903.94/99,549.12
  6. Step 6: Final answer
    x = 75,675.23

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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.