Home / 65,452.38-90,310.32-38,585.10

Finding the Fourth Proportional to 65,452.38, 90,310.32 and 38,585.10

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Solution

The fourth proportional to 65,452.38, 90,310.32 and 38,585.10 is: 53,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,452.38 : 90,310.32 = 38,585.10 : x
  2. Step 2: Convert to fraction form
    65,452.38/90,310.32 = 38,585.10/x
  3. Step 3: Cross multiply
    65,452.38x = 90,310.32 × 38,585.10
  4. Step 4: Simplify right side
    65,452.38x = 3,484,632,728.23
  5. Step 5: Solve for x
    x = 3,484,632,728.23/65,452.38
  6. Step 6: Final answer
    x = 53,239.21

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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.