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Finding the Fourth Proportional to 101,999.60, 152,999.52 and 31,879.28

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Solution

The fourth proportional to 101,999.60, 152,999.52 and 31,879.28 is: 47,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,999.60 : 152,999.52 = 31,879.28 : x
  2. Step 2: Convert to fraction form
    101,999.60/152,999.52 = 31,879.28/x
  3. Step 3: Cross multiply
    101,999.60x = 152,999.52 × 31,879.28
  4. Step 4: Simplify right side
    101,999.60x = 4,877,514,537.95
  5. Step 5: Solve for x
    x = 4,877,514,537.95/101,999.60
  6. Step 6: Final answer
    x = 47,818.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.