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Finding the Fourth Proportional to 75,223.20, 112,905.28 and 39,710.88

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Solution

The fourth proportional to 75,223.20, 112,905.28 and 39,710.88 is: 59,603.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,223.20 : 112,905.28 = 39,710.88 : x
  2. Step 2: Convert to fraction form
    75,223.20/112,905.28 = 39,710.88/x
  3. Step 3: Cross multiply
    75,223.20x = 112,905.28 × 39,710.88
  4. Step 4: Simplify right side
    75,223.20x = 4,483,568,025.45
  5. Step 5: Solve for x
    x = 4,483,568,025.45/75,223.20
  6. Step 6: Final answer
    x = 59,603.53

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1.5x scale

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.