Home / 68,120.56-94,008.60-42,618.76

Finding the Fourth Proportional to 68,120.56, 94,008.60 and 42,618.76

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Solution

The fourth proportional to 68,120.56, 94,008.60 and 42,618.76 is: 58,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,120.56 : 94,008.60 = 42,618.76 : x
  2. Step 2: Convert to fraction form
    68,120.56/94,008.60 = 42,618.76/x
  3. Step 3: Cross multiply
    68,120.56x = 94,008.60 × 42,618.76
  4. Step 4: Simplify right side
    68,120.56x = 4,006,529,961.34
  5. Step 5: Solve for x
    x = 4,006,529,961.34/68,120.56
  6. Step 6: Final answer
    x = 58,815.28

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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.