Home / 55,250.30-82,875.45-20,185.40

Finding the Fourth Proportional to 55,250.30, 82,875.45 and 20,185.40

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Solution

The fourth proportional to 55,250.30, 82,875.45 and 20,185.40 is: 30,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,250.30 : 82,875.45 = 20,185.40 : x
  2. Step 2: Convert to fraction form
    55,250.30/82,875.45 = 20,185.40/x
  3. Step 3: Cross multiply
    55,250.30x = 82,875.45 × 20,185.40
  4. Step 4: Simplify right side
    55,250.30x = 1,672,874,108.43
  5. Step 5: Solve for x
    x = 1,672,874,108.43/55,250.30
  6. Step 6: Final answer
    x = 30,278.10

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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.