Home / 79,124.19-109,181.70-63,032.49

Finding the Fourth Proportional to 79,124.19, 109,181.70 and 63,032.49

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Solution

The fourth proportional to 79,124.19, 109,181.70 and 63,032.49 is: 86,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,124.19 : 109,181.70 = 63,032.49 : x
  2. Step 2: Convert to fraction form
    79,124.19/109,181.70 = 63,032.49/x
  3. Step 3: Cross multiply
    79,124.19x = 109,181.70 × 63,032.49
  4. Step 4: Simplify right side
    79,124.19x = 6,881,994,413.43
  5. Step 5: Solve for x
    x = 6,881,994,413.43/79,124.19
  6. Step 6: Final answer
    x = 86,977.12

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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.