Home / 88,131.95-121,622.29-47,845.81

Finding the Fourth Proportional to 88,131.95, 121,622.29 and 47,845.81

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Solution

The fourth proportional to 88,131.95, 121,622.29 and 47,845.81 is: 66,027.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,131.95 : 121,622.29 = 47,845.81 : x
  2. Step 2: Convert to fraction form
    88,131.95/121,622.29 = 47,845.81/x
  3. Step 3: Cross multiply
    88,131.95x = 121,622.29 × 47,845.81
  4. Step 4: Simplify right side
    88,131.95x = 5,819,116,979.10
  5. Step 5: Solve for x
    x = 5,819,116,979.10/88,131.95
  6. Step 6: Final answer
    x = 66,027.33

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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.