Home / 80,823.66-111,528.64-45,017

Finding the Fourth Proportional to 80,823.66, 111,528.64 and 45,017

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Solution

The fourth proportional to 80,823.66, 111,528.64 and 45,017 is: 62,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,823.66 : 111,528.64 = 45,017 : x
  2. Step 2: Convert to fraction form
    80,823.66/111,528.64 = 45,017/x
  3. Step 3: Cross multiply
    80,823.66x = 111,528.64 × 45,017
  4. Step 4: Simplify right side
    80,823.66x = 5,020,684,786.88
  5. Step 5: Solve for x
    x = 5,020,684,786.88/80,823.66
  6. Step 6: Final answer
    x = 62,119.00

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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.