Home / 75,357.12-104,003.64-45,143.72

Finding the Fourth Proportional to 75,357.12, 104,003.64 and 45,143.72

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Solution

The fourth proportional to 75,357.12, 104,003.64 and 45,143.72 is: 62,304.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,357.12 : 104,003.64 = 45,143.72 : x
  2. Step 2: Convert to fraction form
    75,357.12/104,003.64 = 45,143.72/x
  3. Step 3: Cross multiply
    75,357.12x = 104,003.64 × 45,143.72
  4. Step 4: Simplify right side
    75,357.12x = 4,695,110,683.12
  5. Step 5: Solve for x
    x = 4,695,110,683.12/75,357.12
  6. Step 6: Final answer
    x = 62,304.81

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1.5x scale

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.