Home / 88,203.31-121,720.66-47,917.06

Finding the Fourth Proportional to 88,203.31, 121,720.66 and 47,917.06

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Solution

The fourth proportional to 88,203.31, 121,720.66 and 47,917.06 is: 66,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,203.31 : 121,720.66 = 47,917.06 : x
  2. Step 2: Convert to fraction form
    88,203.31/121,720.66 = 47,917.06/x
  3. Step 3: Cross multiply
    88,203.31x = 121,720.66 × 47,917.06
  4. Step 4: Simplify right side
    88,203.31x = 5,832,495,744.37
  5. Step 5: Solve for x
    x = 5,832,495,744.37/88,203.31
  6. Step 6: Final answer
    x = 66,125.59

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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.