Home / 99,962.76-137,952.32-54,643.82

Finding the Fourth Proportional to 99,962.76, 137,952.32 and 54,643.82

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Solution

The fourth proportional to 99,962.76, 137,952.32 and 54,643.82 is: 75,410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,962.76 : 137,952.32 = 54,643.82 : x
  2. Step 2: Convert to fraction form
    99,962.76/137,952.32 = 54,643.82/x
  3. Step 3: Cross multiply
    99,962.76x = 137,952.32 × 54,643.82
  4. Step 4: Simplify right side
    99,962.76x = 7,538,240,779.68
  5. Step 5: Solve for x
    x = 7,538,240,779.68/99,962.76
  6. Step 6: Final answer
    x = 75,410.49

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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.