Home / 75,321.66-113,001.48-53,178.29

Finding the Fourth Proportional to 75,321.66, 113,001.48 and 53,178.29

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Solution

The fourth proportional to 75,321.66, 113,001.48 and 53,178.29 is: 79,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,321.66 : 113,001.48 = 53,178.29 : x
  2. Step 2: Convert to fraction form
    75,321.66/113,001.48 = 53,178.29/x
  3. Step 3: Cross multiply
    75,321.66x = 113,001.48 × 53,178.29
  4. Step 4: Simplify right side
    75,321.66x = 6,009,225,332.62
  5. Step 5: Solve for x
    x = 6,009,225,332.62/75,321.66
  6. Step 6: Final answer
    x = 79,780.84

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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.