Home / 72,583.12-100,156.98-40,755.52

Finding the Fourth Proportional to 72,583.12, 100,156.98 and 40,755.52

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Solution

The fourth proportional to 72,583.12, 100,156.98 and 40,755.52 is: 56,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583.12 : 100,156.98 = 40,755.52 : x
  2. Step 2: Convert to fraction form
    72,583.12/100,156.98 = 40,755.52/x
  3. Step 3: Cross multiply
    72,583.12x = 100,156.98 × 40,755.52
  4. Step 4: Simplify right side
    72,583.12x = 4,081,949,801.53
  5. Step 5: Solve for x
    x = 4,081,949,801.53/72,583.12
  6. Step 6: Final answer
    x = 56,238.28

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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.