Home / 86,506.12-129,777.12-36,586.64

Finding the Fourth Proportional to 86,506.12, 129,777.12 and 36,586.64

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Solution

The fourth proportional to 86,506.12, 129,777.12 and 36,586.64 is: 54,887.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,506.12 : 129,777.12 = 36,586.64 : x
  2. Step 2: Convert to fraction form
    86,506.12/129,777.12 = 36,586.64/x
  3. Step 3: Cross multiply
    86,506.12x = 129,777.12 × 36,586.64
  4. Step 4: Simplify right side
    86,506.12x = 4,748,108,769.68
  5. Step 5: Solve for x
    x = 4,748,108,769.68/86,506.12
  6. Step 6: Final answer
    x = 54,887.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.