Home / 80,907.12-111,655.65-45,097.42

Finding the Fourth Proportional to 80,907.12, 111,655.65 and 45,097.42

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Solution

The fourth proportional to 80,907.12, 111,655.65 and 45,097.42 is: 62,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,907.12 : 111,655.65 = 45,097.42 : x
  2. Step 2: Convert to fraction form
    80,907.12/111,655.65 = 45,097.42/x
  3. Step 3: Cross multiply
    80,907.12x = 111,655.65 × 45,097.42
  4. Step 4: Simplify right side
    80,907.12x = 5,035,381,743.42
  5. Step 5: Solve for x
    x = 5,035,381,743.42/80,907.12
  6. Step 6: Final answer
    x = 62,236.57

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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.