Home / 77,159.09-115,737.81-58,553.39

Finding the Fourth Proportional to 77,159.09, 115,737.81 and 58,553.39

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Solution

The fourth proportional to 77,159.09, 115,737.81 and 58,553.39 is: 87,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,159.09 : 115,737.81 = 58,553.39 : x
  2. Step 2: Convert to fraction form
    77,159.09/115,737.81 = 58,553.39/x
  3. Step 3: Cross multiply
    77,159.09x = 115,737.81 × 58,553.39
  4. Step 4: Simplify right side
    77,159.09x = 6,776,841,126.68
  5. Step 5: Solve for x
    x = 6,776,841,126.68/77,159.09
  6. Step 6: Final answer
    x = 87,829.46

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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.