Home / 74,955.20-103,438.11-41,421.20

Finding the Fourth Proportional to 74,955.20, 103,438.11 and 41,421.20

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Solution

The fourth proportional to 74,955.20, 103,438.11 and 41,421.20 is: 57,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,955.20 : 103,438.11 = 41,421.20 : x
  2. Step 2: Convert to fraction form
    74,955.20/103,438.11 = 41,421.20/x
  3. Step 3: Cross multiply
    74,955.20x = 103,438.11 × 41,421.20
  4. Step 4: Simplify right side
    74,955.20x = 4,284,530,641.93
  5. Step 5: Solve for x
    x = 4,284,530,641.93/74,955.20
  6. Step 6: Final answer
    x = 57,161.22

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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.