Home / 75,849.40-113,514.90-66,518.20

Finding the Fourth Proportional to 75,849.40, 113,514.90 and 66,518.20

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Solution

The fourth proportional to 75,849.40, 113,514.90 and 66,518.20 is: 99,549.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,849.40 : 113,514.90 = 66,518.20 : x
  2. Step 2: Convert to fraction form
    75,849.40/113,514.90 = 66,518.20/x
  3. Step 3: Cross multiply
    75,849.40x = 113,514.90 × 66,518.20
  4. Step 4: Simplify right side
    75,849.40x = 7,550,806,821.18
  5. Step 5: Solve for x
    x = 7,550,806,821.18/75,849.40
  6. Step 6: Final answer
    x = 99,549.99

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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.