Home / 75,708.47-113,390.51-58,705.20

Finding the Fourth Proportional to 75,708.47, 113,390.51 and 58,705.20

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Solution

The fourth proportional to 75,708.47, 113,390.51 and 58,705.20 is: 87,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,708.47 : 113,390.51 = 58,705.20 : x
  2. Step 2: Convert to fraction form
    75,708.47/113,390.51 = 58,705.20/x
  3. Step 3: Cross multiply
    75,708.47x = 113,390.51 × 58,705.20
  4. Step 4: Simplify right side
    75,708.47x = 6,656,612,714.42
  5. Step 5: Solve for x
    x = 6,656,612,714.42/75,708.47
  6. Step 6: Final answer
    x = 87,924.29

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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.