Home / 86,770.80-130,156.20-27,612.45

Finding the Fourth Proportional to 86,770.80, 130,156.20 and 27,612.45

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Solution

The fourth proportional to 86,770.80, 130,156.20 and 27,612.45 is: 41,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,770.80 : 130,156.20 = 27,612.45 : x
  2. Step 2: Convert to fraction form
    86,770.80/130,156.20 = 27,612.45/x
  3. Step 3: Cross multiply
    86,770.80x = 130,156.20 × 27,612.45
  4. Step 4: Simplify right side
    86,770.80x = 3,593,931,564.69
  5. Step 5: Solve for x
    x = 3,593,931,564.69/86,770.80
  6. Step 6: Final answer
    x = 41,418.68

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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.