Home / 77,923.52-116,873.76-28,664

Finding the Fourth Proportional to 77,923.52, 116,873.76 and 28,664

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Solution

The fourth proportional to 77,923.52, 116,873.76 and 28,664 is: 42,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,923.52 : 116,873.76 = 28,664 : x
  2. Step 2: Convert to fraction form
    77,923.52/116,873.76 = 28,664/x
  3. Step 3: Cross multiply
    77,923.52x = 116,873.76 × 28,664
  4. Step 4: Simplify right side
    77,923.52x = 3,350,069,456.64
  5. Step 5: Solve for x
    x = 3,350,069,456.64/77,923.52
  6. Step 6: Final answer
    x = 42,991.76

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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.