Home / 65,869.24-90,899.78-35,654.92

Finding the Fourth Proportional to 65,869.24, 90,899.78 and 35,654.92

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Solution

The fourth proportional to 65,869.24, 90,899.78 and 35,654.92 is: 49,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,869.24 : 90,899.78 = 35,654.92 : x
  2. Step 2: Convert to fraction form
    65,869.24/90,899.78 = 35,654.92/x
  3. Step 3: Cross multiply
    65,869.24x = 90,899.78 × 35,654.92
  4. Step 4: Simplify right side
    65,869.24x = 3,241,024,383.92
  5. Step 5: Solve for x
    x = 3,241,024,383.92/65,869.24
  6. Step 6: Final answer
    x = 49,203.91

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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.