Home / 88,213.74-121,688.37-55,891.32

Finding the Fourth Proportional to 88,213.74, 121,688.37 and 55,891.32

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Solution

The fourth proportional to 88,213.74, 121,688.37 and 55,891.32 is: 77,100.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,213.74 : 121,688.37 = 55,891.32 : x
  2. Step 2: Convert to fraction form
    88,213.74/121,688.37 = 55,891.32/x
  3. Step 3: Cross multiply
    88,213.74x = 121,688.37 × 55,891.32
  4. Step 4: Simplify right side
    88,213.74x = 6,801,323,627.95
  5. Step 5: Solve for x
    x = 6,801,323,627.95/88,213.74
  6. Step 6: Final answer
    x = 77,100.50

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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.