Home / 65,249.20-90,039.58-38,386.50

Finding the Fourth Proportional to 65,249.20, 90,039.58 and 38,386.50

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Solution

The fourth proportional to 65,249.20, 90,039.58 and 38,386.50 is: 52,970.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,249.20 : 90,039.58 = 38,386.50 : x
  2. Step 2: Convert to fraction form
    65,249.20/90,039.58 = 38,386.50/x
  3. Step 3: Cross multiply
    65,249.20x = 90,039.58 × 38,386.50
  4. Step 4: Simplify right side
    65,249.20x = 3,456,304,337.67
  5. Step 5: Solve for x
    x = 3,456,304,337.67/65,249.20
  6. Step 6: Final answer
    x = 52,970.83

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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.