Home / 72,998.04-109,417.05-28,576.02

Finding the Fourth Proportional to 72,998.04, 109,417.05 and 28,576.02

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Solution

The fourth proportional to 72,998.04, 109,417.05 and 28,576.02 is: 42,832.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,998.04 : 109,417.05 = 28,576.02 : x
  2. Step 2: Convert to fraction form
    72,998.04/109,417.05 = 28,576.02/x
  3. Step 3: Cross multiply
    72,998.04x = 109,417.05 × 28,576.02
  4. Step 4: Simplify right side
    72,998.04x = 3,126,703,809.14
  5. Step 5: Solve for x
    x = 3,126,703,809.14/72,998.04
  6. Step 6: Final answer
    x = 42,832.71

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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.