Home / 72,225.40-108,249.36-40,568.91

Finding the Fourth Proportional to 72,225.40, 108,249.36 and 40,568.91

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Solution

The fourth proportional to 72,225.40, 108,249.36 and 40,568.91 is: 60,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,225.40 : 108,249.36 = 40,568.91 : x
  2. Step 2: Convert to fraction form
    72,225.40/108,249.36 = 40,568.91/x
  3. Step 3: Cross multiply
    72,225.40x = 108,249.36 × 40,568.91
  4. Step 4: Simplify right side
    72,225.40x = 4,391,558,543.40
  5. Step 5: Solve for x
    x = 4,391,558,543.40/72,225.40
  6. Step 6: Final answer
    x = 60,803.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.