Home / 89,039.76-133,355.52-57,780.24

Finding the Fourth Proportional to 89,039.76, 133,355.52 and 57,780.24

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Solution

The fourth proportional to 89,039.76, 133,355.52 and 57,780.24 is: 86,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,039.76 : 133,355.52 = 57,780.24 : x
  2. Step 2: Convert to fraction form
    89,039.76/133,355.52 = 57,780.24/x
  3. Step 3: Cross multiply
    89,039.76x = 133,355.52 × 57,780.24
  4. Step 4: Simplify right side
    89,039.76x = 7,705,313,950.92
  5. Step 5: Solve for x
    x = 7,705,313,950.92/89,039.76
  6. Step 6: Final answer
    x = 86,537.90

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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.