Home / 67,856.08-101,709.60-28,438.24

Finding the Fourth Proportional to 67,856.08, 101,709.60 and 28,438.24

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Solution

The fourth proportional to 67,856.08, 101,709.60 and 28,438.24 is: 42,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,856.08 : 101,709.60 = 28,438.24 : x
  2. Step 2: Convert to fraction form
    67,856.08/101,709.60 = 28,438.24/x
  3. Step 3: Cross multiply
    67,856.08x = 101,709.60 × 28,438.24
  4. Step 4: Simplify right side
    67,856.08x = 2,892,442,015.10
  5. Step 5: Solve for x
    x = 2,892,442,015.10/67,856.08
  6. Step 6: Final answer
    x = 42,626.13

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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.