Home / 77,710.04-107,239.67-43,718.54

Finding the Fourth Proportional to 77,710.04, 107,239.67 and 43,718.54

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Solution

The fourth proportional to 77,710.04, 107,239.67 and 43,718.54 is: 60,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,710.04 : 107,239.67 = 43,718.54 : x
  2. Step 2: Convert to fraction form
    77,710.04/107,239.67 = 43,718.54/x
  3. Step 3: Cross multiply
    77,710.04x = 107,239.67 × 43,718.54
  4. Step 4: Simplify right side
    77,710.04x = 4,688,361,375.58
  5. Step 5: Solve for x
    x = 4,688,361,375.58/77,710.04
  6. Step 6: Final answer
    x = 60,331.48

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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.