Home / 88,131.12-121,620.09-47,844

Finding the Fourth Proportional to 88,131.12, 121,620.09 and 47,844

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Solution

The fourth proportional to 88,131.12, 121,620.09 and 47,844 is: 66,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,131.12 : 121,620.09 = 47,844 : x
  2. Step 2: Convert to fraction form
    88,131.12/121,620.09 = 47,844/x
  3. Step 3: Cross multiply
    88,131.12x = 121,620.09 × 47,844
  4. Step 4: Simplify right side
    88,131.12x = 5,818,791,585.96
  5. Step 5: Solve for x
    x = 5,818,791,585.96/88,131.12
  6. Step 6: Final answer
    x = 66,024.26

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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.