Home / 74,411.36-102,603.96-57,377.04

Finding the Fourth Proportional to 74,411.36, 102,603.96 and 57,377.04

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Solution

The fourth proportional to 74,411.36, 102,603.96 and 57,377.04 is: 79,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,411.36 : 102,603.96 = 57,377.04 : x
  2. Step 2: Convert to fraction form
    74,411.36/102,603.96 = 57,377.04/x
  3. Step 3: Cross multiply
    74,411.36x = 102,603.96 × 57,377.04
  4. Step 4: Simplify right side
    74,411.36x = 5,887,111,517.08
  5. Step 5: Solve for x
    x = 5,887,111,517.08/74,411.36
  6. Step 6: Final answer
    x = 79,115.76

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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.