Home / 67,830.38-93,616.86-39,530.60

Finding the Fourth Proportional to 67,830.38, 93,616.86 and 39,530.60

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Solution

The fourth proportional to 67,830.38, 93,616.86 and 39,530.60 is: 54,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,830.38 : 93,616.86 = 39,530.60 : x
  2. Step 2: Convert to fraction form
    67,830.38/93,616.86 = 39,530.60/x
  3. Step 3: Cross multiply
    67,830.38x = 93,616.86 × 39,530.60
  4. Step 4: Simplify right side
    67,830.38x = 3,700,730,645.92
  5. Step 5: Solve for x
    x = 3,700,730,645.92/67,830.38
  6. Step 6: Final answer
    x = 54,558.60

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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.