Home / 75,161.10-103,696.57-42,872.52

Finding the Fourth Proportional to 75,161.10, 103,696.57 and 42,872.52

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Solution

The fourth proportional to 75,161.10, 103,696.57 and 42,872.52 is: 59,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,161.10 : 103,696.57 = 42,872.52 : x
  2. Step 2: Convert to fraction form
    75,161.10/103,696.57 = 42,872.52/x
  3. Step 3: Cross multiply
    75,161.10x = 103,696.57 × 42,872.52
  4. Step 4: Simplify right side
    75,161.10x = 4,445,733,271.26
  5. Step 5: Solve for x
    x = 4,445,733,271.26/75,161.10
  6. Step 6: Final answer
    x = 59,149.39

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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.