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Finding the Fourth Proportional to 89,225.36, 133,865.76 and 53,725.76

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Solution

The fourth proportional to 89,225.36, 133,865.76 and 53,725.76 is: 80,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,225.36 : 133,865.76 = 53,725.76 : x
  2. Step 2: Convert to fraction form
    89,225.36/133,865.76 = 53,725.76/x
  3. Step 3: Cross multiply
    89,225.36x = 133,865.76 × 53,725.76
  4. Step 4: Simplify right side
    89,225.36x = 7,192,039,693.98
  5. Step 5: Solve for x
    x = 7,192,039,693.98/89,225.36
  6. Step 6: Final answer
    x = 80,605.33

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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.