Home / 86,528.20-129,533.10-51,449.80

Finding the Fourth Proportional to 86,528.20, 129,533.10 and 51,449.80

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Solution

The fourth proportional to 86,528.20, 129,533.10 and 51,449.80 is: 77,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,528.20 : 129,533.10 = 51,449.80 : x
  2. Step 2: Convert to fraction form
    86,528.20/129,533.10 = 51,449.80/x
  3. Step 3: Cross multiply
    86,528.20x = 129,533.10 × 51,449.80
  4. Step 4: Simplify right side
    86,528.20x = 6,664,452,088.38
  5. Step 5: Solve for x
    x = 6,664,452,088.38/86,528.20
  6. Step 6: Final answer
    x = 77,020.58

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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.