Home / 49,417.80-68,128.77-31,259.49

Finding the Fourth Proportional to 49,417.80, 68,128.77 and 31,259.49

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Solution

The fourth proportional to 49,417.80, 68,128.77 and 31,259.49 is: 43,095.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,417.80 : 68,128.77 = 31,259.49 : x
  2. Step 2: Convert to fraction form
    49,417.80/68,128.77 = 31,259.49/x
  3. Step 3: Cross multiply
    49,417.80x = 68,128.77 × 31,259.49
  4. Step 4: Simplify right side
    49,417.80x = 2,129,670,263.88
  5. Step 5: Solve for x
    x = 2,129,670,263.88/49,417.80
  6. Step 6: Final answer
    x = 43,095.21

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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.