Home / 75,421.62-113,180.08-42,163.52

Finding the Fourth Proportional to 75,421.62, 113,180.08 and 42,163.52

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Solution

The fourth proportional to 75,421.62, 113,180.08 and 42,163.52 is: 63,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,421.62 : 113,180.08 = 42,163.52 : x
  2. Step 2: Convert to fraction form
    75,421.62/113,180.08 = 42,163.52/x
  3. Step 3: Cross multiply
    75,421.62x = 113,180.08 × 42,163.52
  4. Step 4: Simplify right side
    75,421.62x = 4,772,070,566.68
  5. Step 5: Solve for x
    x = 4,772,070,566.68/75,421.62
  6. Step 6: Final answer
    x = 63,271.92

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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.