Home / 67,735.08-93,520.07-42,280.21

Finding the Fourth Proportional to 67,735.08, 93,520.07 and 42,280.21

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Solution

The fourth proportional to 67,735.08, 93,520.07 and 42,280.21 is: 58,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,735.08 : 93,520.07 = 42,280.21 : x
  2. Step 2: Convert to fraction form
    67,735.08/93,520.07 = 42,280.21/x
  3. Step 3: Cross multiply
    67,735.08x = 93,520.07 × 42,280.21
  4. Step 4: Simplify right side
    67,735.08x = 3,954,048,198.81
  5. Step 5: Solve for x
    x = 3,954,048,198.81/67,735.08
  6. Step 6: Final answer
    x = 58,375.19

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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.