Home / 80,871.39-121,159.26-58,629.60

Finding the Fourth Proportional to 80,871.39, 121,159.26 and 58,629.60

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Solution

The fourth proportional to 80,871.39, 121,159.26 and 58,629.60 is: 87,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,871.39 : 121,159.26 = 58,629.60 : x
  2. Step 2: Convert to fraction form
    80,871.39/121,159.26 = 58,629.60/x
  3. Step 3: Cross multiply
    80,871.39x = 121,159.26 × 58,629.60
  4. Step 4: Simplify right side
    80,871.39x = 7,103,518,950.10
  5. Step 5: Solve for x
    x = 7,103,518,950.10/80,871.39
  6. Step 6: Final answer
    x = 87,837.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.