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Finding the Fourth Proportional to 53,684.98, 80,422.13 and 43,700.47

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Solution

The fourth proportional to 53,684.98, 80,422.13 and 43,700.47 is: 65,464.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,684.98 : 80,422.13 = 43,700.47 : x
  2. Step 2: Convert to fraction form
    53,684.98/80,422.13 = 43,700.47/x
  3. Step 3: Cross multiply
    53,684.98x = 80,422.13 × 43,700.47
  4. Step 4: Simplify right side
    53,684.98x = 3,514,484,586.54
  5. Step 5: Solve for x
    x = 3,514,484,586.54/53,684.98
  6. Step 6: Final answer
    x = 65,464.95

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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.