Home / 53,626.48-80,428.80-20,335.12

Finding the Fourth Proportional to 53,626.48, 80,428.80 and 20,335.12

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Solution

The fourth proportional to 53,626.48, 80,428.80 and 20,335.12 is: 30,498.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,626.48 : 80,428.80 = 20,335.12 : x
  2. Step 2: Convert to fraction form
    53,626.48/80,428.80 = 20,335.12/x
  3. Step 3: Cross multiply
    53,626.48x = 80,428.80 × 20,335.12
  4. Step 4: Simplify right side
    53,626.48x = 1,635,529,299.46
  5. Step 5: Solve for x
    x = 1,635,529,299.46/53,626.48
  6. Step 6: Final answer
    x = 30,498.54

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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.