Home / 99,288.66-137,015.91-56,843.58

Finding the Fourth Proportional to 99,288.66, 137,015.91 and 56,843.58

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Solution

The fourth proportional to 99,288.66, 137,015.91 and 56,843.58 is: 78,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,288.66 : 137,015.91 = 56,843.58 : x
  2. Step 2: Convert to fraction form
    99,288.66/137,015.91 = 56,843.58/x
  3. Step 3: Cross multiply
    99,288.66x = 137,015.91 × 56,843.58
  4. Step 4: Simplify right side
    99,288.66x = 7,788,474,841.36
  5. Step 5: Solve for x
    x = 7,788,474,841.36/99,288.66
  6. Step 6: Final answer
    x = 78,442.74

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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.