Home / 72,664.16-108,951.62-28,239.02

Finding the Fourth Proportional to 72,664.16, 108,951.62 and 28,239.02

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Solution

The fourth proportional to 72,664.16, 108,951.62 and 28,239.02 is: 42,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,664.16 : 108,951.62 = 28,239.02 : x
  2. Step 2: Convert to fraction form
    72,664.16/108,951.62 = 28,239.02/x
  3. Step 3: Cross multiply
    72,664.16x = 108,951.62 × 28,239.02
  4. Step 4: Simplify right side
    72,664.16x = 3,076,686,976.21
  5. Step 5: Solve for x
    x = 3,076,686,976.21/72,664.16
  6. Step 6: Final answer
    x = 42,341.19

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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.