Home / 55,990.16-83,989.70-18,548.72

Finding the Fourth Proportional to 55,990.16, 83,989.70 and 18,548.72

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Solution

The fourth proportional to 55,990.16, 83,989.70 and 18,548.72 is: 27,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.16 : 83,989.70 = 18,548.72 : x
  2. Step 2: Convert to fraction form
    55,990.16/83,989.70 = 18,548.72/x
  3. Step 3: Cross multiply
    55,990.16x = 83,989.70 × 18,548.72
  4. Step 4: Simplify right side
    55,990.16x = 1,557,901,428.18
  5. Step 5: Solve for x
    x = 1,557,901,428.18/55,990.16
  6. Step 6: Final answer
    x = 27,824.56

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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.