Home / 42,867.40-64,340.99-21,823.19

Finding the Fourth Proportional to 42,867.40, 64,340.99 and 21,823.19

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Solution

The fourth proportional to 42,867.40, 64,340.99 and 21,823.19 is: 32,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,867.40 : 64,340.99 = 21,823.19 : x
  2. Step 2: Convert to fraction form
    42,867.40/64,340.99 = 21,823.19/x
  3. Step 3: Cross multiply
    42,867.40x = 64,340.99 × 21,823.19
  4. Step 4: Simplify right side
    42,867.40x = 1,404,125,649.56
  5. Step 5: Solve for x
    x = 1,404,125,649.56/42,867.40
  6. Step 6: Final answer
    x = 32,755.09

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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.