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Finding the Fourth Proportional to 53,497.60, 80,169.60 and 39,347.20

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Solution

The fourth proportional to 53,497.60, 80,169.60 and 39,347.20 is: 58,964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,497.60 : 80,169.60 = 39,347.20 : x
  2. Step 2: Convert to fraction form
    53,497.60/80,169.60 = 39,347.20/x
  3. Step 3: Cross multiply
    53,497.60x = 80,169.60 × 39,347.20
  4. Step 4: Simplify right side
    53,497.60x = 3,154,449,285.12
  5. Step 5: Solve for x
    x = 3,154,449,285.12/53,497.60
  6. Step 6: Final answer
    x = 58,964.31

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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.