Home / 43,679.76-65,396.40-42,280.08

Finding the Fourth Proportional to 43,679.76, 65,396.40 and 42,280.08

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Solution

The fourth proportional to 43,679.76, 65,396.40 and 42,280.08 is: 63,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,679.76 : 65,396.40 = 42,280.08 : x
  2. Step 2: Convert to fraction form
    43,679.76/65,396.40 = 42,280.08/x
  3. Step 3: Cross multiply
    43,679.76x = 65,396.40 × 42,280.08
  4. Step 4: Simplify right side
    43,679.76x = 2,764,965,023.71
  5. Step 5: Solve for x
    x = 2,764,965,023.71/43,679.76
  6. Step 6: Final answer
    x = 63,300.83

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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.