Home / 75,002.82-103,581.36-64,882.68

Finding the Fourth Proportional to 75,002.82, 103,581.36 and 64,882.68

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Solution

The fourth proportional to 75,002.82, 103,581.36 and 64,882.68 is: 89,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,002.82 : 103,581.36 = 64,882.68 : x
  2. Step 2: Convert to fraction form
    75,002.82/103,581.36 = 64,882.68/x
  3. Step 3: Cross multiply
    75,002.82x = 103,581.36 × 64,882.68
  4. Step 4: Simplify right side
    75,002.82x = 6,720,636,234.84
  5. Step 5: Solve for x
    x = 6,720,636,234.84/75,002.82
  6. Step 6: Final answer
    x = 89,605.11

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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.