Home / 80,820.16-111,423.09-56,588.53

Finding the Fourth Proportional to 80,820.16, 111,423.09 and 56,588.53

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Solution

The fourth proportional to 80,820.16, 111,423.09 and 56,588.53 is: 78,016.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820.16 : 111,423.09 = 56,588.53 : x
  2. Step 2: Convert to fraction form
    80,820.16/111,423.09 = 56,588.53/x
  3. Step 3: Cross multiply
    80,820.16x = 111,423.09 × 56,588.53
  4. Step 4: Simplify right side
    80,820.16x = 6,305,268,871.16
  5. Step 5: Solve for x
    x = 6,305,268,871.16/80,820.16
  6. Step 6: Final answer
    x = 78,016.04

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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.