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Finding the Fourth Proportional to 89,108.40, 133,662.60 and 57,615.60

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Solution

The fourth proportional to 89,108.40, 133,662.60 and 57,615.60 is: 86,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,108.40 : 133,662.60 = 57,615.60 : x
  2. Step 2: Convert to fraction form
    89,108.40/133,662.60 = 57,615.60/x
  3. Step 3: Cross multiply
    89,108.40x = 133,662.60 × 57,615.60
  4. Step 4: Simplify right side
    89,108.40x = 7,701,050,896.56
  5. Step 5: Solve for x
    x = 7,701,050,896.56/89,108.40
  6. Step 6: Final answer
    x = 86,423.40

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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.