Home / 67,856.52-93,640.17-39,175.21

Finding the Fourth Proportional to 67,856.52, 93,640.17 and 39,175.21

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Solution

The fourth proportional to 67,856.52, 93,640.17 and 39,175.21 is: 54,060.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,856.52 : 93,640.17 = 39,175.21 : x
  2. Step 2: Convert to fraction form
    67,856.52/93,640.17 = 39,175.21/x
  3. Step 3: Cross multiply
    67,856.52x = 93,640.17 × 39,175.21
  4. Step 4: Simplify right side
    67,856.52x = 3,668,373,588.14
  5. Step 5: Solve for x
    x = 3,668,373,588.14/67,856.52
  6. Step 6: Final answer
    x = 54,060.74

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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.