Home / 109,054.20-163,581.30-56,479.80

Finding the Fourth Proportional to 109,054.20, 163,581.30 and 56,479.80

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Solution

The fourth proportional to 109,054.20, 163,581.30 and 56,479.80 is: 84,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,054.20 : 163,581.30 = 56,479.80 : x
  2. Step 2: Convert to fraction form
    109,054.20/163,581.30 = 56,479.80/x
  3. Step 3: Cross multiply
    109,054.20x = 163,581.30 × 56,479.80
  4. Step 4: Simplify right side
    109,054.20x = 9,239,039,107.74
  5. Step 5: Solve for x
    x = 9,239,039,107.74/109,054.20
  6. Step 6: Final answer
    x = 84,719.70

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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.