Home / 65,007.20-89,705.28-38,150.80

Finding the Fourth Proportional to 65,007.20, 89,705.28 and 38,150.80

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Solution

The fourth proportional to 65,007.20, 89,705.28 and 38,150.80 is: 52,645.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,007.20 : 89,705.28 = 38,150.80 : x
  2. Step 2: Convert to fraction form
    65,007.20/89,705.28 = 38,150.80/x
  3. Step 3: Cross multiply
    65,007.20x = 89,705.28 × 38,150.80
  4. Step 4: Simplify right side
    65,007.20x = 3,422,328,196.22
  5. Step 5: Solve for x
    x = 3,422,328,196.22/65,007.20
  6. Step 6: Final answer
    x = 52,645.37

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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.