Home / 53,395.91-80,239.36-28,453.78

Finding the Fourth Proportional to 53,395.91, 80,239.36 and 28,453.78

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Solution

The fourth proportional to 53,395.91, 80,239.36 and 28,453.78 is: 42,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,395.91 : 80,239.36 = 28,453.78 : x
  2. Step 2: Convert to fraction form
    53,395.91/80,239.36 = 28,453.78/x
  3. Step 3: Cross multiply
    53,395.91x = 80,239.36 × 28,453.78
  4. Step 4: Simplify right side
    53,395.91x = 2,283,113,096.78
  5. Step 5: Solve for x
    x = 2,283,113,096.78/53,395.91
  6. Step 6: Final answer
    x = 42,758.20

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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.