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Finding the Fourth Proportional to 89,803.84, 134,611.80 and 30,618.76

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Solution

The fourth proportional to 89,803.84, 134,611.80 and 30,618.76 is: 45,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,803.84 : 134,611.80 = 30,618.76 : x
  2. Step 2: Convert to fraction form
    89,803.84/134,611.80 = 30,618.76/x
  3. Step 3: Cross multiply
    89,803.84x = 134,611.80 × 30,618.76
  4. Step 4: Simplify right side
    89,803.84x = 4,121,646,397.37
  5. Step 5: Solve for x
    x = 4,121,646,397.37/89,803.84
  6. Step 6: Final answer
    x = 45,896.10

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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.