Home / 64,523.12-96,785.16-17,778.56

Finding the Fourth Proportional to 64,523.12, 96,785.16 and 17,778.56

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Solution

The fourth proportional to 64,523.12, 96,785.16 and 17,778.56 is: 26,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,523.12 : 96,785.16 = 17,778.56 : x
  2. Step 2: Convert to fraction form
    64,523.12/96,785.16 = 17,778.56/x
  3. Step 3: Cross multiply
    64,523.12x = 96,785.16 × 17,778.56
  4. Step 4: Simplify right side
    64,523.12x = 1,720,700,774.17
  5. Step 5: Solve for x
    x = 1,720,700,774.17/64,523.12
  6. Step 6: Final answer
    x = 26,667.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.