Home / 89,412.20-133,899.60-42,610.40

Finding the Fourth Proportional to 89,412.20, 133,899.60 and 42,610.40

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Solution

The fourth proportional to 89,412.20, 133,899.60 and 42,610.40 is: 63,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,412.20 : 133,899.60 = 42,610.40 : x
  2. Step 2: Convert to fraction form
    89,412.20/133,899.60 = 42,610.40/x
  3. Step 3: Cross multiply
    89,412.20x = 133,899.60 × 42,610.40
  4. Step 4: Simplify right side
    89,412.20x = 5,705,515,515.84
  5. Step 5: Solve for x
    x = 5,705,515,515.84/89,412.20
  6. Step 6: Final answer
    x = 63,811.38

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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.