Home / 72,222.39-108,333.81-19,631.84

Finding the Fourth Proportional to 72,222.39, 108,333.81 and 19,631.84

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Solution

The fourth proportional to 72,222.39, 108,333.81 and 19,631.84 is: 29,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,222.39 : 108,333.81 = 19,631.84 : x
  2. Step 2: Convert to fraction form
    72,222.39/108,333.81 = 19,631.84/x
  3. Step 3: Cross multiply
    72,222.39x = 108,333.81 × 19,631.84
  4. Step 4: Simplify right side
    72,222.39x = 2,126,791,482.84
  5. Step 5: Solve for x
    x = 2,126,791,482.84/72,222.39
  6. Step 6: Final answer
    x = 29,447.81

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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.