Home / 53,635.68-80,428.48-19,900.35

Finding the Fourth Proportional to 53,635.68, 80,428.48 and 19,900.35

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Solution

The fourth proportional to 53,635.68, 80,428.48 and 19,900.35 is: 29,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,635.68 : 80,428.48 = 19,900.35 : x
  2. Step 2: Convert to fraction form
    53,635.68/80,428.48 = 19,900.35/x
  3. Step 3: Cross multiply
    53,635.68x = 80,428.48 × 19,900.35
  4. Step 4: Simplify right side
    53,635.68x = 1,600,554,901.97
  5. Step 5: Solve for x
    x = 1,600,554,901.97/53,635.68
  6. Step 6: Final answer
    x = 29,841.23

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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.