Home / 74,951.65-103,385.70-57,007.32

Finding the Fourth Proportional to 74,951.65, 103,385.70 and 57,007.32

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Solution

The fourth proportional to 74,951.65, 103,385.70 and 57,007.32 is: 78,633.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951.65 : 103,385.70 = 57,007.32 : x
  2. Step 2: Convert to fraction form
    74,951.65/103,385.70 = 57,007.32/x
  3. Step 3: Cross multiply
    74,951.65x = 103,385.70 × 57,007.32
  4. Step 4: Simplify right side
    74,951.65x = 5,893,741,683.32
  5. Step 5: Solve for x
    x = 5,893,741,683.32/74,951.65
  6. Step 6: Final answer
    x = 78,633.92

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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.