Home / 89,251.16-123,157.44-53,440.20

Finding the Fourth Proportional to 89,251.16, 123,157.44 and 53,440.20

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Solution

The fourth proportional to 89,251.16, 123,157.44 and 53,440.20 is: 73,741.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,251.16 : 123,157.44 = 53,440.20 : x
  2. Step 2: Convert to fraction form
    89,251.16/123,157.44 = 53,440.20/x
  3. Step 3: Cross multiply
    89,251.16x = 123,157.44 × 53,440.20
  4. Step 4: Simplify right side
    89,251.16x = 6,581,558,225.09
  5. Step 5: Solve for x
    x = 6,581,558,225.09/89,251.16
  6. Step 6: Final answer
    x = 73,741.99

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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.