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Finding the Fourth Proportional to 76,999.54, 106,251.86 and 43,005.32

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Solution

The fourth proportional to 76,999.54, 106,251.86 and 43,005.32 is: 59,343.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,999.54 : 106,251.86 = 43,005.32 : x
  2. Step 2: Convert to fraction form
    76,999.54/106,251.86 = 43,005.32/x
  3. Step 3: Cross multiply
    76,999.54x = 106,251.86 × 43,005.32
  4. Step 4: Simplify right side
    76,999.54x = 4,569,395,024.87
  5. Step 5: Solve for x
    x = 4,569,395,024.87/76,999.54
  6. Step 6: Final answer
    x = 59,343.15

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1.5x scale

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.