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Finding the Fourth Proportional to 101,670.52, 140,310.89 and 56,347.54

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Solution

The fourth proportional to 101,670.52, 140,310.89 and 56,347.54 is: 77,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,670.52 : 140,310.89 = 56,347.54 : x
  2. Step 2: Convert to fraction form
    101,670.52/140,310.89 = 56,347.54/x
  3. Step 3: Cross multiply
    101,670.52x = 140,310.89 × 56,347.54
  4. Step 4: Simplify right side
    101,670.52x = 7,906,173,486.71
  5. Step 5: Solve for x
    x = 7,906,173,486.71/101,670.52
  6. Step 6: Final answer
    x = 77,762.69

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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.