Home / 65,466.27-90,339.44-38,609.91

Finding the Fourth Proportional to 65,466.27, 90,339.44 and 38,609.91

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Solution

The fourth proportional to 65,466.27, 90,339.44 and 38,609.91 is: 53,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,466.27 : 90,339.44 = 38,609.91 : x
  2. Step 2: Convert to fraction form
    65,466.27/90,339.44 = 38,609.91/x
  3. Step 3: Cross multiply
    65,466.27x = 90,339.44 × 38,609.91
  4. Step 4: Simplify right side
    65,466.27x = 3,487,997,454.80
  5. Step 5: Solve for x
    x = 3,487,997,454.80/65,466.27
  6. Step 6: Final answer
    x = 53,279.31

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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.