Home / 80,811.66-111,519.81-45,002.10

Finding the Fourth Proportional to 80,811.66, 111,519.81 and 45,002.10

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Solution

The fourth proportional to 80,811.66, 111,519.81 and 45,002.10 is: 62,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,811.66 : 111,519.81 = 45,002.10 : x
  2. Step 2: Convert to fraction form
    80,811.66/111,519.81 = 45,002.10/x
  3. Step 3: Cross multiply
    80,811.66x = 111,519.81 × 45,002.10
  4. Step 4: Simplify right side
    80,811.66x = 5,018,625,641.60
  5. Step 5: Solve for x
    x = 5,018,625,641.60/80,811.66
  6. Step 6: Final answer
    x = 62,102.74

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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.