Home / 88,131.40-121,622.28-47,845.60

Finding the Fourth Proportional to 88,131.40, 121,622.28 and 47,845.60

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Solution

The fourth proportional to 88,131.40, 121,622.28 and 47,845.60 is: 66,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,131.40 : 121,622.28 = 47,845.60 : x
  2. Step 2: Convert to fraction form
    88,131.40/121,622.28 = 47,845.60/x
  3. Step 3: Cross multiply
    88,131.40x = 121,622.28 × 47,845.60
  4. Step 4: Simplify right side
    88,131.40x = 5,819,090,959.97
  5. Step 5: Solve for x
    x = 5,819,090,959.97/88,131.40
  6. Step 6: Final answer
    x = 66,027.44

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1.5x scale

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.