Home / 75,138.64-103,691.14-43,307.26

Finding the Fourth Proportional to 75,138.64, 103,691.14 and 43,307.26

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Solution

The fourth proportional to 75,138.64, 103,691.14 and 43,307.26 is: 59,763.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,138.64 : 103,691.14 = 43,307.26 : x
  2. Step 2: Convert to fraction form
    75,138.64/103,691.14 = 43,307.26/x
  3. Step 3: Cross multiply
    75,138.64x = 103,691.14 × 43,307.26
  4. Step 4: Simplify right side
    75,138.64x = 4,490,579,159.68
  5. Step 5: Solve for x
    x = 4,490,579,159.68/75,138.64
  6. Step 6: Final answer
    x = 59,763.91

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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.