Home / 77,331.78-106,726.41-43,345.80

Finding the Fourth Proportional to 77,331.78, 106,726.41 and 43,345.80

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Solution

The fourth proportional to 77,331.78, 106,726.41 and 43,345.80 is: 59,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,331.78 : 106,726.41 = 43,345.80 : x
  2. Step 2: Convert to fraction form
    77,331.78/106,726.41 = 43,345.80/x
  3. Step 3: Cross multiply
    77,331.78x = 106,726.41 × 43,345.80
  4. Step 4: Simplify right side
    77,331.78x = 4,626,141,622.58
  5. Step 5: Solve for x
    x = 4,626,141,622.58/77,331.78
  6. Step 6: Final answer
    x = 59,822.00

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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.