Home / 70,930.90-97,857.18-40,705.30

Finding the Fourth Proportional to 70,930.90, 97,857.18 and 40,705.30

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Solution

The fourth proportional to 70,930.90, 97,857.18 and 40,705.30 is: 56,157.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,930.90 : 97,857.18 = 40,705.30 : x
  2. Step 2: Convert to fraction form
    70,930.90/97,857.18 = 40,705.30/x
  3. Step 3: Cross multiply
    70,930.90x = 97,857.18 × 40,705.30
  4. Step 4: Simplify right side
    70,930.90x = 3,983,305,869.05
  5. Step 5: Solve for x
    x = 3,983,305,869.05/70,930.90
  6. Step 6: Final answer
    x = 56,157.55

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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.