Home / 89,331.40-133,802.70-54,209.80

Finding the Fourth Proportional to 89,331.40, 133,802.70 and 54,209.80

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Solution

The fourth proportional to 89,331.40, 133,802.70 and 54,209.80 is: 81,196.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,331.40 : 133,802.70 = 54,209.80 : x
  2. Step 2: Convert to fraction form
    89,331.40/133,802.70 = 54,209.80/x
  3. Step 3: Cross multiply
    89,331.40x = 133,802.70 × 54,209.80
  4. Step 4: Simplify right side
    89,331.40x = 7,253,417,606.46
  5. Step 5: Solve for x
    x = 7,253,417,606.46/89,331.40
  6. Step 6: Final answer
    x = 81,196.73

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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.