Home / 88,137.55-121,629.90-47,851.30

Finding the Fourth Proportional to 88,137.55, 121,629.90 and 47,851.30

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Solution

The fourth proportional to 88,137.55, 121,629.90 and 47,851.30 is: 66,034.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,137.55 : 121,629.90 = 47,851.30 : x
  2. Step 2: Convert to fraction form
    88,137.55/121,629.90 = 47,851.30/x
  3. Step 3: Cross multiply
    88,137.55x = 121,629.90 × 47,851.30
  4. Step 4: Simplify right side
    88,137.55x = 5,820,148,833.87
  5. Step 5: Solve for x
    x = 5,820,148,833.87/88,137.55
  6. Step 6: Final answer
    x = 66,034.84

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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.