Home / 88,199.42-121,668.54-55,877.02

Finding the Fourth Proportional to 88,199.42, 121,668.54 and 55,877.02

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Solution

The fourth proportional to 88,199.42, 121,668.54 and 55,877.02 is: 77,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,199.42 : 121,668.54 = 55,877.02 : x
  2. Step 2: Convert to fraction form
    88,199.42/121,668.54 = 55,877.02/x
  3. Step 3: Cross multiply
    88,199.42x = 121,668.54 × 55,877.02
  4. Step 4: Simplify right side
    88,199.42x = 6,798,475,442.95
  5. Step 5: Solve for x
    x = 6,798,475,442.95/88,199.42
  6. Step 6: Final answer
    x = 77,080.73

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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.