Home / 54,319.20-81,486.90-19,256.10

Finding the Fourth Proportional to 54,319.20, 81,486.90 and 19,256.10

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Solution

The fourth proportional to 54,319.20, 81,486.90 and 19,256.10 is: 28,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,319.20 : 81,486.90 = 19,256.10 : x
  2. Step 2: Convert to fraction form
    54,319.20/81,486.90 = 19,256.10/x
  3. Step 3: Cross multiply
    54,319.20x = 81,486.90 × 19,256.10
  4. Step 4: Simplify right side
    54,319.20x = 1,569,119,895.09
  5. Step 5: Solve for x
    x = 1,569,119,895.09/54,319.20
  6. Step 6: Final answer
    x = 28,887.02

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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.