Home / 80,215.16-110,616.63-53,358.80

Finding the Fourth Proportional to 80,215.16, 110,616.63 and 53,358.80

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Solution

The fourth proportional to 80,215.16, 110,616.63 and 53,358.80 is: 73,581.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,215.16 : 110,616.63 = 53,358.80 : x
  2. Step 2: Convert to fraction form
    80,215.16/110,616.63 = 53,358.80/x
  3. Step 3: Cross multiply
    80,215.16x = 110,616.63 × 53,358.80
  4. Step 4: Simplify right side
    80,215.16x = 5,902,370,636.84
  5. Step 5: Solve for x
    x = 5,902,370,636.84/80,215.16
  6. Step 6: Final answer
    x = 73,581.73

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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.