Home / 55,990.20-83,970.72-18,553.62

Finding the Fourth Proportional to 55,990.20, 83,970.72 and 18,553.62

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Solution

The fourth proportional to 55,990.20, 83,970.72 and 18,553.62 is: 27,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.20 : 83,970.72 = 18,553.62 : x
  2. Step 2: Convert to fraction form
    55,990.20/83,970.72 = 18,553.62/x
  3. Step 3: Cross multiply
    55,990.20x = 83,970.72 × 18,553.62
  4. Step 4: Simplify right side
    55,990.20x = 1,557,960,830.01
  5. Step 5: Solve for x
    x = 1,557,960,830.01/55,990.20
  6. Step 6: Final answer
    x = 27,825.60

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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.