Home / 75,178.48-103,744.92-43,348.72

Finding the Fourth Proportional to 75,178.48, 103,744.92 and 43,348.72

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Solution

The fourth proportional to 75,178.48, 103,744.92 and 43,348.72 is: 59,820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,178.48 : 103,744.92 = 43,348.72 : x
  2. Step 2: Convert to fraction form
    75,178.48/103,744.92 = 43,348.72/x
  3. Step 3: Cross multiply
    75,178.48x = 103,744.92 × 43,348.72
  4. Step 4: Simplify right side
    75,178.48x = 4,497,209,488.50
  5. Step 5: Solve for x
    x = 4,497,209,488.50/75,178.48
  6. Step 6: Final answer
    x = 59,820.44

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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.