Home / 72,464.57-99,967.08-51,255.53

Finding the Fourth Proportional to 72,464.57, 99,967.08 and 51,255.53

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Solution

The fourth proportional to 72,464.57, 99,967.08 and 51,255.53 is: 70,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,464.57 : 99,967.08 = 51,255.53 : x
  2. Step 2: Convert to fraction form
    72,464.57/99,967.08 = 51,255.53/x
  3. Step 3: Cross multiply
    72,464.57x = 99,967.08 × 51,255.53
  4. Step 4: Simplify right side
    72,464.57x = 5,123,864,911.84
  5. Step 5: Solve for x
    x = 5,123,864,911.84/72,464.57
  6. Step 6: Final answer
    x = 70,708.56

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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.