Home / 80,818.16-111,528.78-45,008.60

Finding the Fourth Proportional to 80,818.16, 111,528.78 and 45,008.60

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Solution

The fourth proportional to 80,818.16, 111,528.78 and 45,008.60 is: 62,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,818.16 : 111,528.78 = 45,008.60 : x
  2. Step 2: Convert to fraction form
    80,818.16/111,528.78 = 45,008.60/x
  3. Step 3: Cross multiply
    80,818.16x = 111,528.78 × 45,008.60
  4. Step 4: Simplify right side
    80,818.16x = 5,019,754,247.51
  5. Step 5: Solve for x
    x = 5,019,754,247.51/80,818.16
  6. Step 6: Final answer
    x = 62,111.71

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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.