Home / 55,211.10-82,816.65-18,270.30

Finding the Fourth Proportional to 55,211.10, 82,816.65 and 18,270.30

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Solution

The fourth proportional to 55,211.10, 82,816.65 and 18,270.30 is: 27,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.10 : 82,816.65 = 18,270.30 : x
  2. Step 2: Convert to fraction form
    55,211.10/82,816.65 = 18,270.30/x
  3. Step 3: Cross multiply
    55,211.10x = 82,816.65 × 18,270.30
  4. Step 4: Simplify right side
    55,211.10x = 1,513,085,040.50
  5. Step 5: Solve for x
    x = 1,513,085,040.50/55,211.10
  6. Step 6: Final answer
    x = 27,405.45

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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.