Home / 81,248.12-112,123.94-45,442.07

Finding the Fourth Proportional to 81,248.12, 112,123.94 and 45,442.07

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Solution

The fourth proportional to 81,248.12, 112,123.94 and 45,442.07 is: 62,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,248.12 : 112,123.94 = 45,442.07 : x
  2. Step 2: Convert to fraction form
    81,248.12/112,123.94 = 45,442.07/x
  3. Step 3: Cross multiply
    81,248.12x = 112,123.94 × 45,442.07
  4. Step 4: Simplify right side
    81,248.12x = 5,095,143,930.16
  5. Step 5: Solve for x
    x = 5,095,143,930.16/81,248.12
  6. Step 6: Final answer
    x = 62,710.91

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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.