Home / 72,877.02-109,278-33,400.32

Finding the Fourth Proportional to 72,877.02, 109,278 and 33,400.32

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Solution

The fourth proportional to 72,877.02, 109,278 and 33,400.32 is: 50,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,877.02 : 109,278 = 33,400.32 : x
  2. Step 2: Convert to fraction form
    72,877.02/109,278 = 33,400.32/x
  3. Step 3: Cross multiply
    72,877.02x = 109,278 × 33,400.32
  4. Step 4: Simplify right side
    72,877.02x = 3,649,920,168.96
  5. Step 5: Solve for x
    x = 3,649,920,168.96/72,877.02
  6. Step 6: Final answer
    x = 50,083.28

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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.