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Finding the Fourth Proportional to 56,271, 84,407.31 and 14,718

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Solution

The fourth proportional to 56,271, 84,407.31 and 14,718 is: 22,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271 : 84,407.31 = 14,718 : x
  2. Step 2: Convert to fraction form
    56,271/84,407.31 = 14,718/x
  3. Step 3: Cross multiply
    56,271x = 84,407.31 × 14,718
  4. Step 4: Simplify right side
    56,271x = 1,242,306,788.58
  5. Step 5: Solve for x
    x = 1,242,306,788.58/56,271
  6. Step 6: Final answer
    x = 22,077.21

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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.