Home / 42,166.54-63,249.90-28,979.02

Finding the Fourth Proportional to 42,166.54, 63,249.90 and 28,979.02

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Solution

The fourth proportional to 42,166.54, 63,249.90 and 28,979.02 is: 43,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,166.54 : 63,249.90 = 28,979.02 : x
  2. Step 2: Convert to fraction form
    42,166.54/63,249.90 = 28,979.02/x
  3. Step 3: Cross multiply
    42,166.54x = 63,249.90 × 28,979.02
  4. Step 4: Simplify right side
    42,166.54x = 1,832,920,117.10
  5. Step 5: Solve for x
    x = 1,832,920,117.10/42,166.54
  6. Step 6: Final answer
    x = 43,468.59

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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.