Home / 86,525.28-119,342.43-66,807.18

Finding the Fourth Proportional to 86,525.28, 119,342.43 and 66,807.18

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Solution

The fourth proportional to 86,525.28, 119,342.43 and 66,807.18 is: 92,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,525.28 : 119,342.43 = 66,807.18 : x
  2. Step 2: Convert to fraction form
    86,525.28/119,342.43 = 66,807.18/x
  3. Step 3: Cross multiply
    86,525.28x = 119,342.43 × 66,807.18
  4. Step 4: Simplify right side
    86,525.28x = 7,972,931,202.65
  5. Step 5: Solve for x
    x = 7,972,931,202.65/86,525.28
  6. Step 6: Final answer
    x = 92,145.69

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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.