Home / 55,181.40-82,772.10-21,909.40

Finding the Fourth Proportional to 55,181.40, 82,772.10 and 21,909.40

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Solution

The fourth proportional to 55,181.40, 82,772.10 and 21,909.40 is: 32,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,181.40 : 82,772.10 = 21,909.40 : x
  2. Step 2: Convert to fraction form
    55,181.40/82,772.10 = 21,909.40/x
  3. Step 3: Cross multiply
    55,181.40x = 82,772.10 × 21,909.40
  4. Step 4: Simplify right side
    55,181.40x = 1,813,487,047.74
  5. Step 5: Solve for x
    x = 1,813,487,047.74/55,181.40
  6. Step 6: Final answer
    x = 32,864.10

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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.