Home / 88,736.40-133,131.28-53,236.80

Finding the Fourth Proportional to 88,736.40, 133,131.28 and 53,236.80

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Solution

The fourth proportional to 88,736.40, 133,131.28 and 53,236.80 is: 79,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,736.40 : 133,131.28 = 53,236.80 : x
  2. Step 2: Convert to fraction form
    88,736.40/133,131.28 = 53,236.80/x
  3. Step 3: Cross multiply
    88,736.40x = 133,131.28 × 53,236.80
  4. Step 4: Simplify right side
    88,736.40x = 7,087,483,327.10
  5. Step 5: Solve for x
    x = 7,087,483,327.10/88,736.40
  6. Step 6: Final answer
    x = 79,871.21

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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.