Home / 70,788.33-97,690.20-40,579.38

Finding the Fourth Proportional to 70,788.33, 97,690.20 and 40,579.38

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Solution

The fourth proportional to 70,788.33, 97,690.20 and 40,579.38 is: 56,000.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,788.33 : 97,690.20 = 40,579.38 : x
  2. Step 2: Convert to fraction form
    70,788.33/97,690.20 = 40,579.38/x
  3. Step 3: Cross multiply
    70,788.33x = 97,690.20 × 40,579.38
  4. Step 4: Simplify right side
    70,788.33x = 3,964,207,748.08
  5. Step 5: Solve for x
    x = 3,964,207,748.08/70,788.33
  6. Step 6: Final answer
    x = 56,000.87

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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.