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Finding the Fourth Proportional to 75,155.48, 112,554.28 and 43,498.88

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Solution

The fourth proportional to 75,155.48, 112,554.28 and 43,498.88 is: 65,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,155.48 : 112,554.28 = 43,498.88 : x
  2. Step 2: Convert to fraction form
    75,155.48/112,554.28 = 43,498.88/x
  3. Step 3: Cross multiply
    75,155.48x = 112,554.28 × 43,498.88
  4. Step 4: Simplify right side
    75,155.48x = 4,895,985,119.21
  5. Step 5: Solve for x
    x = 4,895,985,119.21/75,155.48
  6. Step 6: Final answer
    x = 65,144.75

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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.