Home / 89,071.20-122,920.25-50,829.98

Finding the Fourth Proportional to 89,071.20, 122,920.25 and 50,829.98

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Solution

The fourth proportional to 89,071.20, 122,920.25 and 50,829.98 is: 70,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,071.20 : 122,920.25 = 50,829.98 : x
  2. Step 2: Convert to fraction form
    89,071.20/122,920.25 = 50,829.98/x
  3. Step 3: Cross multiply
    89,071.20x = 122,920.25 × 50,829.98
  4. Step 4: Simplify right side
    89,071.20x = 6,248,033,902.25
  5. Step 5: Solve for x
    x = 6,248,033,902.25/89,071.20
  6. Step 6: Final answer
    x = 70,146.51

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1.5x scale

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.