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Finding the Fourth Proportional to 86,046, 118,743.48 and 48,320.28

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Solution

The fourth proportional to 86,046, 118,743.48 and 48,320.28 is: 66,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,046 : 118,743.48 = 48,320.28 : x
  2. Step 2: Convert to fraction form
    86,046/118,743.48 = 48,320.28/x
  3. Step 3: Cross multiply
    86,046x = 118,743.48 × 48,320.28
  4. Step 4: Simplify right side
    86,046x = 5,737,718,201.77
  5. Step 5: Solve for x
    x = 5,737,718,201.77/86,046
  6. Step 6: Final answer
    x = 66,681.99

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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.