Home / 77,412.51-115,921.94-51,037.29

Finding the Fourth Proportional to 77,412.51, 115,921.94 and 51,037.29

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Solution

The fourth proportional to 77,412.51, 115,921.94 and 51,037.29 is: 76,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,412.51 : 115,921.94 = 51,037.29 : x
  2. Step 2: Convert to fraction form
    77,412.51/115,921.94 = 51,037.29/x
  3. Step 3: Cross multiply
    77,412.51x = 115,921.94 × 51,037.29
  4. Step 4: Simplify right side
    77,412.51x = 5,916,341,413.96
  5. Step 5: Solve for x
    x = 5,916,341,413.96/77,412.51
  6. Step 6: Final answer
    x = 76,426.17

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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.