Home / 89,145.36-133,737.48-26,811

Finding the Fourth Proportional to 89,145.36, 133,737.48 and 26,811

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Solution

The fourth proportional to 89,145.36, 133,737.48 and 26,811 is: 40,222.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,145.36 : 133,737.48 = 26,811 : x
  2. Step 2: Convert to fraction form
    89,145.36/133,737.48 = 26,811/x
  3. Step 3: Cross multiply
    89,145.36x = 133,737.48 × 26,811
  4. Step 4: Simplify right side
    89,145.36x = 3,585,635,576.28
  5. Step 5: Solve for x
    x = 3,585,635,576.28/89,145.36
  6. Step 6: Final answer
    x = 40,222.35

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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.