Home / 68,070.38-93,910.19-39,384.77

Finding the Fourth Proportional to 68,070.38, 93,910.19 and 39,384.77

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Solution

The fourth proportional to 68,070.38, 93,910.19 and 39,384.77 is: 54,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,070.38 : 93,910.19 = 39,384.77 : x
  2. Step 2: Convert to fraction form
    68,070.38/93,910.19 = 39,384.77/x
  3. Step 3: Cross multiply
    68,070.38x = 93,910.19 × 39,384.77
  4. Step 4: Simplify right side
    68,070.38x = 3,698,630,567.33
  5. Step 5: Solve for x
    x = 3,698,630,567.33/68,070.38
  6. Step 6: Final answer
    x = 54,335.39

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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.