Home / 60,221.91-83,120.04-40,079.64

Finding the Fourth Proportional to 60,221.91, 83,120.04 and 40,079.64

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Solution

The fourth proportional to 60,221.91, 83,120.04 and 40,079.64 is: 55,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,221.91 : 83,120.04 = 40,079.64 : x
  2. Step 2: Convert to fraction form
    60,221.91/83,120.04 = 40,079.64/x
  3. Step 3: Cross multiply
    60,221.91x = 83,120.04 × 40,079.64
  4. Step 4: Simplify right side
    60,221.91x = 3,331,421,279.99
  5. Step 5: Solve for x
    x = 3,331,421,279.99/60,221.91
  6. Step 6: Final answer
    x = 55,319.09

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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.