Home / 42,867.48-64,300.56-11,702.64

Finding the Fourth Proportional to 42,867.48, 64,300.56 and 11,702.64

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Solution

The fourth proportional to 42,867.48, 64,300.56 and 11,702.64 is: 17,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,867.48 : 64,300.56 = 11,702.64 : x
  2. Step 2: Convert to fraction form
    42,867.48/64,300.56 = 11,702.64/x
  3. Step 3: Cross multiply
    42,867.48x = 64,300.56 × 11,702.64
  4. Step 4: Simplify right side
    42,867.48x = 752,486,305.48
  5. Step 5: Solve for x
    x = 752,486,305.48/42,867.48
  6. Step 6: Final answer
    x = 17,553.78

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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.