Home / 77,097.48-115,553.67-39,675.21

Finding the Fourth Proportional to 77,097.48, 115,553.67 and 39,675.21

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Solution

The fourth proportional to 77,097.48, 115,553.67 and 39,675.21 is: 59,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,097.48 : 115,553.67 = 39,675.21 : x
  2. Step 2: Convert to fraction form
    77,097.48/115,553.67 = 39,675.21/x
  3. Step 3: Cross multiply
    77,097.48x = 115,553.67 × 39,675.21
  4. Step 4: Simplify right side
    77,097.48x = 4,584,616,123.52
  5. Step 5: Solve for x
    x = 4,584,616,123.52/77,097.48
  6. Step 6: Final answer
    x = 59,465.19

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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.