Home / 70,857.18-97,780.94-38,591.09

Finding the Fourth Proportional to 70,857.18, 97,780.94 and 38,591.09

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Solution

The fourth proportional to 70,857.18, 97,780.94 and 38,591.09 is: 53,254.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,857.18 : 97,780.94 = 38,591.09 : x
  2. Step 2: Convert to fraction form
    70,857.18/97,780.94 = 38,591.09/x
  3. Step 3: Cross multiply
    70,857.18x = 97,780.94 × 38,591.09
  4. Step 4: Simplify right side
    70,857.18x = 3,773,472,862.87
  5. Step 5: Solve for x
    x = 3,773,472,862.87/70,857.18
  6. Step 6: Final answer
    x = 53,254.63

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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.