Home / 57,681.05-86,521.03-18,238.16

Finding the Fourth Proportional to 57,681.05, 86,521.03 and 18,238.16

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Solution

The fourth proportional to 57,681.05, 86,521.03 and 18,238.16 is: 27,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,681.05 : 86,521.03 = 18,238.16 : x
  2. Step 2: Convert to fraction form
    57,681.05/86,521.03 = 18,238.16/x
  3. Step 3: Cross multiply
    57,681.05x = 86,521.03 × 18,238.16
  4. Step 4: Simplify right side
    57,681.05x = 1,577,984,559.21
  5. Step 5: Solve for x
    x = 1,577,984,559.21/57,681.05
  6. Step 6: Final answer
    x = 27,357.07

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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.