Home / 54,325.90-81,468.86-18,778.24

Finding the Fourth Proportional to 54,325.90, 81,468.86 and 18,778.24

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Solution

The fourth proportional to 54,325.90, 81,468.86 and 18,778.24 is: 28,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,325.90 : 81,468.86 = 18,778.24 : x
  2. Step 2: Convert to fraction form
    54,325.90/81,468.86 = 18,778.24/x
  3. Step 3: Cross multiply
    54,325.90x = 81,468.86 × 18,778.24
  4. Step 4: Simplify right side
    54,325.90x = 1,529,841,805.61
  5. Step 5: Solve for x
    x = 1,529,841,805.61/54,325.90
  6. Step 6: Final answer
    x = 28,160.45

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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.