Home / 65,484.13-90,378.97-38,633.24

Finding the Fourth Proportional to 65,484.13, 90,378.97 and 38,633.24

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Solution

The fourth proportional to 65,484.13, 90,378.97 and 38,633.24 is: 53,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,484.13 : 90,378.97 = 38,633.24 : x
  2. Step 2: Convert to fraction form
    65,484.13/90,378.97 = 38,633.24/x
  3. Step 3: Cross multiply
    65,484.13x = 90,378.97 × 38,633.24
  4. Step 4: Simplify right side
    65,484.13x = 3,491,631,890.48
  5. Step 5: Solve for x
    x = 3,491,631,890.48/65,484.13
  6. Step 6: Final answer
    x = 53,320.28

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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.