Home / 72,517.37-99,887.51-51,260.09

Finding the Fourth Proportional to 72,517.37, 99,887.51 and 51,260.09

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Solution

The fourth proportional to 72,517.37, 99,887.51 and 51,260.09 is: 70,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,517.37 : 99,887.51 = 51,260.09 : x
  2. Step 2: Convert to fraction form
    72,517.37/99,887.51 = 51,260.09/x
  3. Step 3: Cross multiply
    72,517.37x = 99,887.51 × 51,260.09
  4. Step 4: Simplify right side
    72,517.37x = 5,120,242,381.19
  5. Step 5: Solve for x
    x = 5,120,242,381.19/72,517.37
  6. Step 6: Final answer
    x = 70,607.12

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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.