Home / 54,156.48-81,014.40-45,784.32

Finding the Fourth Proportional to 54,156.48, 81,014.40 and 45,784.32

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Solution

The fourth proportional to 54,156.48, 81,014.40 and 45,784.32 is: 68,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,156.48 : 81,014.40 = 45,784.32 : x
  2. Step 2: Convert to fraction form
    54,156.48/81,014.40 = 45,784.32/x
  3. Step 3: Cross multiply
    54,156.48x = 81,014.40 × 45,784.32
  4. Step 4: Simplify right side
    54,156.48x = 3,709,189,214.21
  5. Step 5: Solve for x
    x = 3,709,189,214.21/54,156.48
  6. Step 6: Final answer
    x = 68,490.22

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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.