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Finding the Fourth Proportional to 70,418.92, 105,082.40 and 62,941

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Solution

The fourth proportional to 70,418.92, 105,082.40 and 62,941 is: 93,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,418.92 : 105,082.40 = 62,941 : x
  2. Step 2: Convert to fraction form
    70,418.92/105,082.40 = 62,941/x
  3. Step 3: Cross multiply
    70,418.92x = 105,082.40 × 62,941
  4. Step 4: Simplify right side
    70,418.92x = 6,613,991,338.40
  5. Step 5: Solve for x
    x = 6,613,991,338.40/70,418.92
  6. Step 6: Final answer
    x = 93,923.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.