Home / 86,777.36-119,709.60-58,433.84

Finding the Fourth Proportional to 86,777.36, 119,709.60 and 58,433.84

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Solution

The fourth proportional to 86,777.36, 119,709.60 and 58,433.84 is: 80,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,777.36 : 119,709.60 = 58,433.84 : x
  2. Step 2: Convert to fraction form
    86,777.36/119,709.60 = 58,433.84/x
  3. Step 3: Cross multiply
    86,777.36x = 119,709.60 × 58,433.84
  4. Step 4: Simplify right side
    86,777.36x = 6,995,091,612.86
  5. Step 5: Solve for x
    x = 6,995,091,612.86/86,777.36
  6. Step 6: Final answer
    x = 80,609.64

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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.