Home / 65,582.28-90,515.16-38,723.04

Finding the Fourth Proportional to 65,582.28, 90,515.16 and 38,723.04

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Solution

The fourth proportional to 65,582.28, 90,515.16 and 38,723.04 is: 53,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,582.28 : 90,515.16 = 38,723.04 : x
  2. Step 2: Convert to fraction form
    65,582.28/90,515.16 = 38,723.04/x
  3. Step 3: Cross multiply
    65,582.28x = 90,515.16 × 38,723.04
  4. Step 4: Simplify right side
    65,582.28x = 3,505,022,161.29
  5. Step 5: Solve for x
    x = 3,505,022,161.29/65,582.28
  6. Step 6: Final answer
    x = 53,444.65

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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.