Home / 99,767.06-137,681.44-54,447.96

Finding the Fourth Proportional to 99,767.06, 137,681.44 and 54,447.96

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Solution

The fourth proportional to 99,767.06, 137,681.44 and 54,447.96 is: 75,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,767.06 : 137,681.44 = 54,447.96 : x
  2. Step 2: Convert to fraction form
    99,767.06/137,681.44 = 54,447.96/x
  3. Step 3: Cross multiply
    99,767.06x = 137,681.44 × 54,447.96
  4. Step 4: Simplify right side
    99,767.06x = 7,496,472,985.58
  5. Step 5: Solve for x
    x = 7,496,472,985.58/99,767.06
  6. Step 6: Final answer
    x = 75,139.76

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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.