Home / 55,680.40-83,528.70-18,231.40

Finding the Fourth Proportional to 55,680.40, 83,528.70 and 18,231.40

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Solution

The fourth proportional to 55,680.40, 83,528.70 and 18,231.40 is: 27,349.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,680.40 : 83,528.70 = 18,231.40 : x
  2. Step 2: Convert to fraction form
    55,680.40/83,528.70 = 18,231.40/x
  3. Step 3: Cross multiply
    55,680.40x = 83,528.70 × 18,231.40
  4. Step 4: Simplify right side
    55,680.40x = 1,522,845,141.18
  5. Step 5: Solve for x
    x = 1,522,845,141.18/55,680.40
  6. Step 6: Final answer
    x = 27,349.75

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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.