Home / 57,688.89-86,538.20-18,245.13

Finding the Fourth Proportional to 57,688.89, 86,538.20 and 18,245.13

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Solution

The fourth proportional to 57,688.89, 86,538.20 and 18,245.13 is: 27,369.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,688.89 : 86,538.20 = 18,245.13 : x
  2. Step 2: Convert to fraction form
    57,688.89/86,538.20 = 18,245.13/x
  3. Step 3: Cross multiply
    57,688.89x = 86,538.20 × 18,245.13
  4. Step 4: Simplify right side
    57,688.89x = 1,578,900,617.74
  5. Step 5: Solve for x
    x = 1,578,900,617.74/57,688.89
  6. Step 6: Final answer
    x = 27,369.23

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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.