Home / 90,259.80-135,413.19-34,100.34

Finding the Fourth Proportional to 90,259.80, 135,413.19 and 34,100.34

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Solution

The fourth proportional to 90,259.80, 135,413.19 and 34,100.34 is: 51,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,259.80 : 135,413.19 = 34,100.34 : x
  2. Step 2: Convert to fraction form
    90,259.80/135,413.19 = 34,100.34/x
  3. Step 3: Cross multiply
    90,259.80x = 135,413.19 × 34,100.34
  4. Step 4: Simplify right side
    90,259.80x = 4,617,635,819.48
  5. Step 5: Solve for x
    x = 4,617,635,819.48/90,259.80
  6. Step 6: Final answer
    x = 51,159.38

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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.