Home / 77,449.26-116,160.47-21,275.98

Finding the Fourth Proportional to 77,449.26, 116,160.47 and 21,275.98

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Solution

The fourth proportional to 77,449.26, 116,160.47 and 21,275.98 is: 31,910.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,449.26 : 116,160.47 = 21,275.98 : x
  2. Step 2: Convert to fraction form
    77,449.26/116,160.47 = 21,275.98/x
  3. Step 3: Cross multiply
    77,449.26x = 116,160.47 × 21,275.98
  4. Step 4: Simplify right side
    77,449.26x = 2,471,427,836.51
  5. Step 5: Solve for x
    x = 2,471,427,836.51/77,449.26
  6. Step 6: Final answer
    x = 31,910.28

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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.