Home / 55,665.07-83,505.81-20,129.06

Finding the Fourth Proportional to 55,665.07, 83,505.81 and 20,129.06

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Solution

The fourth proportional to 55,665.07, 83,505.81 and 20,129.06 is: 30,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,665.07 : 83,505.81 = 20,129.06 : x
  2. Step 2: Convert to fraction form
    55,665.07/83,505.81 = 20,129.06/x
  3. Step 3: Cross multiply
    55,665.07x = 83,505.81 × 20,129.06
  4. Step 4: Simplify right side
    55,665.07x = 1,680,893,217.75
  5. Step 5: Solve for x
    x = 1,680,893,217.75/55,665.07
  6. Step 6: Final answer
    x = 30,196.55

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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.