Home / 72,152.32-108,170.13-30,064.08

Finding the Fourth Proportional to 72,152.32, 108,170.13 and 30,064.08

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Solution

The fourth proportional to 72,152.32, 108,170.13 and 30,064.08 is: 45,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,152.32 : 108,170.13 = 30,064.08 : x
  2. Step 2: Convert to fraction form
    72,152.32/108,170.13 = 30,064.08/x
  3. Step 3: Cross multiply
    72,152.32x = 108,170.13 × 30,064.08
  4. Step 4: Simplify right side
    72,152.32x = 3,252,035,441.93
  5. Step 5: Solve for x
    x = 3,252,035,441.93/72,152.32
  6. Step 6: Final answer
    x = 45,071.81

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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.