Home / 89,330.84-133,821.12-51,812.12

Finding the Fourth Proportional to 89,330.84, 133,821.12 and 51,812.12

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Solution

The fourth proportional to 89,330.84, 133,821.12 and 51,812.12 is: 77,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,330.84 : 133,821.12 = 51,812.12 : x
  2. Step 2: Convert to fraction form
    89,330.84/133,821.12 = 51,812.12/x
  3. Step 3: Cross multiply
    89,330.84x = 133,821.12 × 51,812.12
  4. Step 4: Simplify right side
    89,330.84x = 6,933,555,927.97
  5. Step 5: Solve for x
    x = 6,933,555,927.97/89,330.84
  6. Step 6: Final answer
    x = 77,616.60

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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.