Home / 99,442.63-137,233.92-56,423.94

Finding the Fourth Proportional to 99,442.63, 137,233.92 and 56,423.94

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Solution

The fourth proportional to 99,442.63, 137,233.92 and 56,423.94 is: 77,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,442.63 : 137,233.92 = 56,423.94 : x
  2. Step 2: Convert to fraction form
    99,442.63/137,233.92 = 56,423.94/x
  3. Step 3: Cross multiply
    99,442.63x = 137,233.92 × 56,423.94
  4. Step 4: Simplify right side
    99,442.63x = 7,743,278,185.93
  5. Step 5: Solve for x
    x = 7,743,278,185.93/99,442.63
  6. Step 6: Final answer
    x = 77,866.79

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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.