Home / 52,726.43-79,116.17-21,159.05

Finding the Fourth Proportional to 52,726.43, 79,116.17 and 21,159.05

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Solution

The fourth proportional to 52,726.43, 79,116.17 and 21,159.05 is: 31,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,726.43 : 79,116.17 = 21,159.05 : x
  2. Step 2: Convert to fraction form
    52,726.43/79,116.17 = 21,159.05/x
  3. Step 3: Cross multiply
    52,726.43x = 79,116.17 × 21,159.05
  4. Step 4: Simplify right side
    52,726.43x = 1,674,022,996.84
  5. Step 5: Solve for x
    x = 1,674,022,996.84/52,726.43
  6. Step 6: Final answer
    x = 31,749.22

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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.