Home / 75,391.10-112,938.82-43,734.68

Finding the Fourth Proportional to 75,391.10, 112,938.82 and 43,734.68

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Solution

The fourth proportional to 75,391.10, 112,938.82 and 43,734.68 is: 65,516.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,391.10 : 112,938.82 = 43,734.68 : x
  2. Step 2: Convert to fraction form
    75,391.10/112,938.82 = 43,734.68/x
  3. Step 3: Cross multiply
    75,391.10x = 112,938.82 × 43,734.68
  4. Step 4: Simplify right side
    75,391.10x = 4,939,343,152.28
  5. Step 5: Solve for x
    x = 4,939,343,152.28/75,391.10
  6. Step 6: Final answer
    x = 65,516.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.