Home / 53,821.60-80,732.40-14,384.80

Finding the Fourth Proportional to 53,821.60, 80,732.40 and 14,384.80

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Solution

The fourth proportional to 53,821.60, 80,732.40 and 14,384.80 is: 21,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,821.60 : 80,732.40 = 14,384.80 : x
  2. Step 2: Convert to fraction form
    53,821.60/80,732.40 = 14,384.80/x
  3. Step 3: Cross multiply
    53,821.60x = 80,732.40 × 14,384.80
  4. Step 4: Simplify right side
    53,821.60x = 1,161,319,427.52
  5. Step 5: Solve for x
    x = 1,161,319,427.52/53,821.60
  6. Step 6: Final answer
    x = 21,577.20

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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.