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Finding the Fourth Proportional to 70,113.67, 96,766.03 and 39,893.12

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Solution

The fourth proportional to 70,113.67, 96,766.03 and 39,893.12 is: 55,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,113.67 : 96,766.03 = 39,893.12 : x
  2. Step 2: Convert to fraction form
    70,113.67/96,766.03 = 39,893.12/x
  3. Step 3: Cross multiply
    70,113.67x = 96,766.03 × 39,893.12
  4. Step 4: Simplify right side
    70,113.67x = 3,860,298,846.71
  5. Step 5: Solve for x
    x = 3,860,298,846.71/70,113.67
  6. Step 6: Final answer
    x = 55,057.72

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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.