Home / 89,821.12-124,006.44-79,857.40

Finding the Fourth Proportional to 89,821.12, 124,006.44 and 79,857.40

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Solution

The fourth proportional to 89,821.12, 124,006.44 and 79,857.40 is: 110,250.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,821.12 : 124,006.44 = 79,857.40 : x
  2. Step 2: Convert to fraction form
    89,821.12/124,006.44 = 79,857.40/x
  3. Step 3: Cross multiply
    89,821.12x = 124,006.44 × 79,857.40
  4. Step 4: Simplify right side
    89,821.12x = 9,902,831,881.66
  5. Step 5: Solve for x
    x = 9,902,831,881.66/89,821.12
  6. Step 6: Final answer
    x = 110,250.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.