Home / 74,689.60-103,062.32-50,543.36

Finding the Fourth Proportional to 74,689.60, 103,062.32 and 50,543.36

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Solution

The fourth proportional to 74,689.60, 103,062.32 and 50,543.36 is: 69,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,689.60 : 103,062.32 = 50,543.36 : x
  2. Step 2: Convert to fraction form
    74,689.60/103,062.32 = 50,543.36/x
  3. Step 3: Cross multiply
    74,689.60x = 103,062.32 × 50,543.36
  4. Step 4: Simplify right side
    74,689.60x = 5,209,115,942.20
  5. Step 5: Solve for x
    x = 5,209,115,942.20/74,689.60
  6. Step 6: Final answer
    x = 69,743.52

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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.