Home / 77,151.09-115,725.81-58,545.39

Finding the Fourth Proportional to 77,151.09, 115,725.81 and 58,545.39

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Solution

The fourth proportional to 77,151.09, 115,725.81 and 58,545.39 is: 87,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,151.09 : 115,725.81 = 58,545.39 : x
  2. Step 2: Convert to fraction form
    77,151.09/115,725.81 = 58,545.39/x
  3. Step 3: Cross multiply
    77,151.09x = 115,725.81 × 58,545.39
  4. Step 4: Simplify right side
    77,151.09x = 6,775,212,679.52
  5. Step 5: Solve for x
    x = 6,775,212,679.52/77,151.09
  6. Step 6: Final answer
    x = 87,817.46

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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.