Home / 47,781.48-71,664.02-12,712.94

Finding the Fourth Proportional to 47,781.48, 71,664.02 and 12,712.94

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Solution

The fourth proportional to 47,781.48, 71,664.02 and 12,712.94 is: 19,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,781.48 : 71,664.02 = 12,712.94 : x
  2. Step 2: Convert to fraction form
    47,781.48/71,664.02 = 12,712.94/x
  3. Step 3: Cross multiply
    47,781.48x = 71,664.02 × 12,712.94
  4. Step 4: Simplify right side
    47,781.48x = 911,060,386.42
  5. Step 5: Solve for x
    x = 911,060,386.42/47,781.48
  6. Step 6: Final answer
    x = 19,067.23

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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.