Home / 86,577.49-119,365.85-70,997.65

Finding the Fourth Proportional to 86,577.49, 119,365.85 and 70,997.65

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Solution

The fourth proportional to 86,577.49, 119,365.85 and 70,997.65 is: 97,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,577.49 : 119,365.85 = 70,997.65 : x
  2. Step 2: Convert to fraction form
    86,577.49/119,365.85 = 70,997.65/x
  3. Step 3: Cross multiply
    86,577.49x = 119,365.85 × 70,997.65
  4. Step 4: Simplify right side
    86,577.49x = 8,474,694,719.33
  5. Step 5: Solve for x
    x = 8,474,694,719.33/86,577.49
  6. Step 6: Final answer
    x = 97,885.66

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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.