Home / 80,889.28-111,594.31-53,678.18

Finding the Fourth Proportional to 80,889.28, 111,594.31 and 53,678.18

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Solution

The fourth proportional to 80,889.28, 111,594.31 and 53,678.18 is: 74,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,889.28 : 111,594.31 = 53,678.18 : x
  2. Step 2: Convert to fraction form
    80,889.28/111,594.31 = 53,678.18/x
  3. Step 3: Cross multiply
    80,889.28x = 111,594.31 × 53,678.18
  4. Step 4: Simplify right side
    80,889.28x = 5,990,179,603.95
  5. Step 5: Solve for x
    x = 5,990,179,603.95/80,889.28
  6. Step 6: Final answer
    x = 74,054.06

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1.5x scale

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.