Home / 75,631.14-113,421.18-28,236.42

Finding the Fourth Proportional to 75,631.14, 113,421.18 and 28,236.42

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Solution

The fourth proportional to 75,631.14, 113,421.18 and 28,236.42 is: 42,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,631.14 : 113,421.18 = 28,236.42 : x
  2. Step 2: Convert to fraction form
    75,631.14/113,421.18 = 28,236.42/x
  3. Step 3: Cross multiply
    75,631.14x = 113,421.18 × 28,236.42
  4. Step 4: Simplify right side
    75,631.14x = 3,202,608,075.38
  5. Step 5: Solve for x
    x = 3,202,608,075.38/75,631.14
  6. Step 6: Final answer
    x = 42,345.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.