Home / 77,979.89-107,610.45-46,149.32

Finding the Fourth Proportional to 77,979.89, 107,610.45 and 46,149.32

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Solution

The fourth proportional to 77,979.89, 107,610.45 and 46,149.32 is: 63,685.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979.89 : 107,610.45 = 46,149.32 : x
  2. Step 2: Convert to fraction form
    77,979.89/107,610.45 = 46,149.32/x
  3. Step 3: Cross multiply
    77,979.89x = 107,610.45 × 46,149.32
  4. Step 4: Simplify right side
    77,979.89x = 4,966,149,092.39
  5. Step 5: Solve for x
    x = 4,966,149,092.39/77,979.89
  6. Step 6: Final answer
    x = 63,685.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.