Home / 77,687.69-116,534.05-21,528.35

Finding the Fourth Proportional to 77,687.69, 116,534.05 and 21,528.35

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Solution

The fourth proportional to 77,687.69, 116,534.05 and 21,528.35 is: 32,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,687.69 : 116,534.05 = 21,528.35 : x
  2. Step 2: Convert to fraction form
    77,687.69/116,534.05 = 21,528.35/x
  3. Step 3: Cross multiply
    77,687.69x = 116,534.05 × 21,528.35
  4. Step 4: Simplify right side
    77,687.69x = 2,508,785,815.32
  5. Step 5: Solve for x
    x = 2,508,785,815.32/77,687.69
  6. Step 6: Final answer
    x = 32,293.22

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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.