Home / 77,431.44-106,848.98-43,435.20

Finding the Fourth Proportional to 77,431.44, 106,848.98 and 43,435.20

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Solution

The fourth proportional to 77,431.44, 106,848.98 and 43,435.20 is: 59,936.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,431.44 : 106,848.98 = 43,435.20 : x
  2. Step 2: Convert to fraction form
    77,431.44/106,848.98 = 43,435.20/x
  3. Step 3: Cross multiply
    77,431.44x = 106,848.98 × 43,435.20
  4. Step 4: Simplify right side
    77,431.44x = 4,641,006,816.10
  5. Step 5: Solve for x
    x = 4,641,006,816.10/77,431.44
  6. Step 6: Final answer
    x = 59,936.98

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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.