Home / 81,545.58-122,202.63-34,109.55

Finding the Fourth Proportional to 81,545.58, 122,202.63 and 34,109.55

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Solution

The fourth proportional to 81,545.58, 122,202.63 and 34,109.55 is: 51,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.58 : 122,202.63 = 34,109.55 : x
  2. Step 2: Convert to fraction form
    81,545.58/122,202.63 = 34,109.55/x
  3. Step 3: Cross multiply
    81,545.58x = 122,202.63 × 34,109.55
  4. Step 4: Simplify right side
    81,545.58x = 4,168,276,718.12
  5. Step 5: Solve for x
    x = 4,168,276,718.12/81,545.58
  6. Step 6: Final answer
    x = 51,115.91

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1.5x scale

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.