Home / 89,039.80-133,609.20-36,445.60

Finding the Fourth Proportional to 89,039.80, 133,609.20 and 36,445.60

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Solution

The fourth proportional to 89,039.80, 133,609.20 and 36,445.60 is: 54,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,039.80 : 133,609.20 = 36,445.60 : x
  2. Step 2: Convert to fraction form
    89,039.80/133,609.20 = 36,445.60/x
  3. Step 3: Cross multiply
    89,039.80x = 133,609.20 × 36,445.60
  4. Step 4: Simplify right side
    89,039.80x = 4,869,467,459.52
  5. Step 5: Solve for x
    x = 4,869,467,459.52/89,039.80
  6. Step 6: Final answer
    x = 54,688.66

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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.