Home / 89,921.46-134,964.99-45,579.63

Finding the Fourth Proportional to 89,921.46, 134,964.99 and 45,579.63

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Solution

The fourth proportional to 89,921.46, 134,964.99 and 45,579.63 is: 68,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,921.46 : 134,964.99 = 45,579.63 : x
  2. Step 2: Convert to fraction form
    89,921.46/134,964.99 = 45,579.63/x
  3. Step 3: Cross multiply
    89,921.46x = 134,964.99 × 45,579.63
  4. Step 4: Simplify right side
    89,921.46x = 6,151,654,307.15
  5. Step 5: Solve for x
    x = 6,151,654,307.15/89,921.46
  6. Step 6: Final answer
    x = 68,411.41

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Double scale
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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.