Home / 81,097.58-121,535.71-51,462.29

Finding the Fourth Proportional to 81,097.58, 121,535.71 and 51,462.29

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Solution

The fourth proportional to 81,097.58, 121,535.71 and 51,462.29 is: 77,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,097.58 : 121,535.71 = 51,462.29 : x
  2. Step 2: Convert to fraction form
    81,097.58/121,535.71 = 51,462.29/x
  3. Step 3: Cross multiply
    81,097.58x = 121,535.71 × 51,462.29
  4. Step 4: Simplify right side
    81,097.58x = 6,254,505,953.38
  5. Step 5: Solve for x
    x = 6,254,505,953.38/81,097.58
  6. Step 6: Final answer
    x = 77,123.21

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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.