Home / 89,416.20-133,905.60-42,614.40

Finding the Fourth Proportional to 89,416.20, 133,905.60 and 42,614.40

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Solution

The fourth proportional to 89,416.20, 133,905.60 and 42,614.40 is: 63,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,416.20 : 133,905.60 = 42,614.40 : x
  2. Step 2: Convert to fraction form
    89,416.20/133,905.60 = 42,614.40/x
  3. Step 3: Cross multiply
    89,416.20x = 133,905.60 × 42,614.40
  4. Step 4: Simplify right side
    89,416.20x = 5,706,306,800.64
  5. Step 5: Solve for x
    x = 5,706,306,800.64/89,416.20
  6. Step 6: Final answer
    x = 63,817.37

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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.