Home / 65,238.08-90,020.13-38,370.79

Finding the Fourth Proportional to 65,238.08, 90,020.13 and 38,370.79

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Solution

The fourth proportional to 65,238.08, 90,020.13 and 38,370.79 is: 52,946.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,238.08 : 90,020.13 = 38,370.79 : x
  2. Step 2: Convert to fraction form
    65,238.08/90,020.13 = 38,370.79/x
  3. Step 3: Cross multiply
    65,238.08x = 90,020.13 × 38,370.79
  4. Step 4: Simplify right side
    65,238.08x = 3,454,143,053.90
  5. Step 5: Solve for x
    x = 3,454,143,053.90/65,238.08
  6. Step 6: Final answer
    x = 52,946.73

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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.