Home / 67,785.06-93,521.99-39,100.86

Finding the Fourth Proportional to 67,785.06, 93,521.99 and 39,100.86

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Solution

The fourth proportional to 67,785.06, 93,521.99 and 39,100.86 is: 53,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,785.06 : 93,521.99 = 39,100.86 : x
  2. Step 2: Convert to fraction form
    67,785.06/93,521.99 = 39,100.86/x
  3. Step 3: Cross multiply
    67,785.06x = 93,521.99 × 39,100.86
  4. Step 4: Simplify right side
    67,785.06x = 3,656,790,393.11
  5. Step 5: Solve for x
    x = 3,656,790,393.11/67,785.06
  6. Step 6: Final answer
    x = 53,946.85

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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.