Home / 70,936.90-97,897.20-39,105.66

Finding the Fourth Proportional to 70,936.90, 97,897.20 and 39,105.66

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Solution

The fourth proportional to 70,936.90, 97,897.20 and 39,105.66 is: 53,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,936.90 : 97,897.20 = 39,105.66 : x
  2. Step 2: Convert to fraction form
    70,936.90/97,897.20 = 39,105.66/x
  3. Step 3: Cross multiply
    70,936.90x = 97,897.20 × 39,105.66
  4. Step 4: Simplify right side
    70,936.90x = 3,828,334,618.15
  5. Step 5: Solve for x
    x = 3,828,334,618.15/70,936.90
  6. Step 6: Final answer
    x = 53,968.17

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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.