Home / 80,506.62-111,130.38-60,421.73

Finding the Fourth Proportional to 80,506.62, 111,130.38 and 60,421.73

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Solution

The fourth proportional to 80,506.62, 111,130.38 and 60,421.73 is: 83,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,506.62 : 111,130.38 = 60,421.73 : x
  2. Step 2: Convert to fraction form
    80,506.62/111,130.38 = 60,421.73/x
  3. Step 3: Cross multiply
    80,506.62x = 111,130.38 × 60,421.73
  4. Step 4: Simplify right side
    80,506.62x = 6,714,689,259.51
  5. Step 5: Solve for x
    x = 6,714,689,259.51/80,506.62
  6. Step 6: Final answer
    x = 83,405.43

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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.