Home / 53,355.20-80,011.20-18,276.80

Finding the Fourth Proportional to 53,355.20, 80,011.20 and 18,276.80

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Solution

The fourth proportional to 53,355.20, 80,011.20 and 18,276.80 is: 27,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,355.20 : 80,011.20 = 18,276.80 : x
  2. Step 2: Convert to fraction form
    53,355.20/80,011.20 = 18,276.80/x
  3. Step 3: Cross multiply
    53,355.20x = 80,011.20 × 18,276.80
  4. Step 4: Simplify right side
    53,355.20x = 1,462,348,700.16
  5. Step 5: Solve for x
    x = 1,462,348,700.16/53,355.20
  6. Step 6: Final answer
    x = 27,407.80

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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.