Home / 89,130.76-133,606.18-55,874.19

Finding the Fourth Proportional to 89,130.76, 133,606.18 and 55,874.19

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Solution

The fourth proportional to 89,130.76, 133,606.18 and 55,874.19 is: 83,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,130.76 : 133,606.18 = 55,874.19 : x
  2. Step 2: Convert to fraction form
    89,130.76/133,606.18 = 55,874.19/x
  3. Step 3: Cross multiply
    89,130.76x = 133,606.18 × 55,874.19
  4. Step 4: Simplify right side
    89,130.76x = 7,465,136,591.53
  5. Step 5: Solve for x
    x = 7,465,136,591.53/89,130.76
  6. Step 6: Final answer
    x = 83,754.88

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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.