Home / 54,454.68-81,630.99-21,196.08

Finding the Fourth Proportional to 54,454.68, 81,630.99 and 21,196.08

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Solution

The fourth proportional to 54,454.68, 81,630.99 and 21,196.08 is: 31,774.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,454.68 : 81,630.99 = 21,196.08 : x
  2. Step 2: Convert to fraction form
    54,454.68/81,630.99 = 21,196.08/x
  3. Step 3: Cross multiply
    54,454.68x = 81,630.99 × 21,196.08
  4. Step 4: Simplify right side
    54,454.68x = 1,730,256,994.52
  5. Step 5: Solve for x
    x = 1,730,256,994.52/54,454.68
  6. Step 6: Final answer
    x = 31,774.26

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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.