Home / 88,352.40-121,945.32-58,140.48

Finding the Fourth Proportional to 88,352.40, 121,945.32 and 58,140.48

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Solution

The fourth proportional to 88,352.40, 121,945.32 and 58,140.48 is: 80,246.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,352.40 : 121,945.32 = 58,140.48 : x
  2. Step 2: Convert to fraction form
    88,352.40/121,945.32 = 58,140.48/x
  3. Step 3: Cross multiply
    88,352.40x = 121,945.32 × 58,140.48
  4. Step 4: Simplify right side
    88,352.40x = 7,089,959,438.55
  5. Step 5: Solve for x
    x = 7,089,959,438.55/88,352.40
  6. Step 6: Final answer
    x = 80,246.37

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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.