Home / 80,977.11-111,748.58-45,166.20

Finding the Fourth Proportional to 80,977.11, 111,748.58 and 45,166.20

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Solution

The fourth proportional to 80,977.11, 111,748.58 and 45,166.20 is: 62,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,977.11 : 111,748.58 = 45,166.20 : x
  2. Step 2: Convert to fraction form
    80,977.11/111,748.58 = 45,166.20/x
  3. Step 3: Cross multiply
    80,977.11x = 111,748.58 × 45,166.20
  4. Step 4: Simplify right side
    80,977.11x = 5,047,258,714.00
  5. Step 5: Solve for x
    x = 5,047,258,714.00/80,977.11
  6. Step 6: Final answer
    x = 62,329.45

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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.