Home / 55,423.76-83,135.64-20,348.24

Finding the Fourth Proportional to 55,423.76, 83,135.64 and 20,348.24

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Solution

The fourth proportional to 55,423.76, 83,135.64 and 20,348.24 is: 30,522.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,423.76 : 83,135.64 = 20,348.24 : x
  2. Step 2: Convert to fraction form
    55,423.76/83,135.64 = 20,348.24/x
  3. Step 3: Cross multiply
    55,423.76x = 83,135.64 × 20,348.24
  4. Step 4: Simplify right side
    55,423.76x = 1,691,663,955.27
  5. Step 5: Solve for x
    x = 1,691,663,955.27/55,423.76
  6. Step 6: Final answer
    x = 30,522.36

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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.