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Finding the Fourth Proportional to 86,127.36, 118,854.72 and 48,408

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Solution

The fourth proportional to 86,127.36, 118,854.72 and 48,408 is: 66,802.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,127.36 : 118,854.72 = 48,408 : x
  2. Step 2: Convert to fraction form
    86,127.36/118,854.72 = 48,408/x
  3. Step 3: Cross multiply
    86,127.36x = 118,854.72 × 48,408
  4. Step 4: Simplify right side
    86,127.36x = 5,753,519,285.76
  5. Step 5: Solve for x
    x = 5,753,519,285.76/86,127.36
  6. Step 6: Final answer
    x = 66,802.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.