Home / 57,718.86-86,578.96-20,280.02

Finding the Fourth Proportional to 57,718.86, 86,578.96 and 20,280.02

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Solution

The fourth proportional to 57,718.86, 86,578.96 and 20,280.02 is: 30,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,718.86 : 86,578.96 = 20,280.02 : x
  2. Step 2: Convert to fraction form
    57,718.86/86,578.96 = 20,280.02/x
  3. Step 3: Cross multiply
    57,718.86x = 86,578.96 × 20,280.02
  4. Step 4: Simplify right side
    57,718.86x = 1,755,823,040.38
  5. Step 5: Solve for x
    x = 1,755,823,040.38/57,718.86
  6. Step 6: Final answer
    x = 30,420.27

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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.