Home / 80,844.47-121,322.19-28,254.01

Finding the Fourth Proportional to 80,844.47, 121,322.19 and 28,254.01

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Solution

The fourth proportional to 80,844.47, 121,322.19 and 28,254.01 is: 42,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,844.47 : 121,322.19 = 28,254.01 : x
  2. Step 2: Convert to fraction form
    80,844.47/121,322.19 = 28,254.01/x
  3. Step 3: Cross multiply
    80,844.47x = 121,322.19 × 28,254.01
  4. Step 4: Simplify right side
    80,844.47x = 3,427,838,369.48
  5. Step 5: Solve for x
    x = 3,427,838,369.48/80,844.47
  6. Step 6: Final answer
    x = 42,400.41

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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.