Home / 65,569.62-90,488.30-40,072.85

Finding the Fourth Proportional to 65,569.62, 90,488.30 and 40,072.85

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Solution

The fourth proportional to 65,569.62, 90,488.30 and 40,072.85 is: 55,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,569.62 : 90,488.30 = 40,072.85 : x
  2. Step 2: Convert to fraction form
    65,569.62/90,488.30 = 40,072.85/x
  3. Step 3: Cross multiply
    65,569.62x = 90,488.30 × 40,072.85
  4. Step 4: Simplify right side
    65,569.62x = 3,626,124,072.66
  5. Step 5: Solve for x
    x = 3,626,124,072.66/65,569.62
  6. Step 6: Final answer
    x = 55,301.89

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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.