Home / 89,157.40-133,736.10-57,664.60

Finding the Fourth Proportional to 89,157.40, 133,736.10 and 57,664.60

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Solution

The fourth proportional to 89,157.40, 133,736.10 and 57,664.60 is: 86,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,157.40 : 133,736.10 = 57,664.60 : x
  2. Step 2: Convert to fraction form
    89,157.40/133,736.10 = 57,664.60/x
  3. Step 3: Cross multiply
    89,157.40x = 133,736.10 × 57,664.60
  4. Step 4: Simplify right side
    89,157.40x = 7,711,838,712.06
  5. Step 5: Solve for x
    x = 7,711,838,712.06/89,157.40
  6. Step 6: Final answer
    x = 86,496.90

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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.