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Finding the Fourth Proportional to 55,340.90, 83,000.55 and 18,404.90

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Solution

The fourth proportional to 55,340.90, 83,000.55 and 18,404.90 is: 27,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,340.90 : 83,000.55 = 18,404.90 : x
  2. Step 2: Convert to fraction form
    55,340.90/83,000.55 = 18,404.90/x
  3. Step 3: Cross multiply
    55,340.90x = 83,000.55 × 18,404.90
  4. Step 4: Simplify right side
    55,340.90x = 1,527,616,822.70
  5. Step 5: Solve for x
    x = 1,527,616,822.70/55,340.90
  6. Step 6: Final answer
    x = 27,603.76

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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.