Home / 47,752.19-65,905.31-28,900.25

Finding the Fourth Proportional to 47,752.19, 65,905.31 and 28,900.25

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Solution

The fourth proportional to 47,752.19, 65,905.31 and 28,900.25 is: 39,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,752.19 : 65,905.31 = 28,900.25 : x
  2. Step 2: Convert to fraction form
    47,752.19/65,905.31 = 28,900.25/x
  3. Step 3: Cross multiply
    47,752.19x = 65,905.31 × 28,900.25
  4. Step 4: Simplify right side
    47,752.19x = 1,904,679,935.33
  5. Step 5: Solve for x
    x = 1,904,679,935.33/47,752.19
  6. Step 6: Final answer
    x = 39,886.76

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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.