Home / 71,332.88-106,999.07-21,412.77

Finding the Fourth Proportional to 71,332.88, 106,999.07 and 21,412.77

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Solution

The fourth proportional to 71,332.88, 106,999.07 and 21,412.77 is: 32,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,332.88 : 106,999.07 = 21,412.77 : x
  2. Step 2: Convert to fraction form
    71,332.88/106,999.07 = 21,412.77/x
  3. Step 3: Cross multiply
    71,332.88x = 106,999.07 × 21,412.77
  4. Step 4: Simplify right side
    71,332.88x = 2,291,146,369.06
  5. Step 5: Solve for x
    x = 2,291,146,369.06/71,332.88
  6. Step 6: Final answer
    x = 32,119.08

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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.