Home / 86,568.15-129,852.23-77,528.55

Finding the Fourth Proportional to 86,568.15, 129,852.23 and 77,528.55

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Solution

The fourth proportional to 86,568.15, 129,852.23 and 77,528.55 is: 116,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568.15 : 129,852.23 = 77,528.55 : x
  2. Step 2: Convert to fraction form
    86,568.15/129,852.23 = 77,528.55/x
  3. Step 3: Cross multiply
    86,568.15x = 129,852.23 × 77,528.55
  4. Step 4: Simplify right side
    86,568.15x = 10,067,254,718.52
  5. Step 5: Solve for x
    x = 10,067,254,718.52/86,568.15
  6. Step 6: Final answer
    x = 116,292.83

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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.