Home / 75,861.48-104,643.68-49,019.76

Finding the Fourth Proportional to 75,861.48, 104,643.68 and 49,019.76

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Solution

The fourth proportional to 75,861.48, 104,643.68 and 49,019.76 is: 67,618.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,861.48 : 104,643.68 = 49,019.76 : x
  2. Step 2: Convert to fraction form
    75,861.48/104,643.68 = 49,019.76/x
  3. Step 3: Cross multiply
    75,861.48x = 104,643.68 × 49,019.76
  4. Step 4: Simplify right side
    75,861.48x = 5,129,608,079.12
  5. Step 5: Solve for x
    x = 5,129,608,079.12/75,861.48
  6. Step 6: Final answer
    x = 67,618.09

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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.