Home / 86,123.81-129,177.36-26,152.81

Finding the Fourth Proportional to 86,123.81, 129,177.36 and 26,152.81

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Solution

The fourth proportional to 86,123.81, 129,177.36 and 26,152.81 is: 39,226.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.81 : 129,177.36 = 26,152.81 : x
  2. Step 2: Convert to fraction form
    86,123.81/129,177.36 = 26,152.81/x
  3. Step 3: Cross multiply
    86,123.81x = 129,177.36 × 26,152.81
  4. Step 4: Simplify right side
    86,123.81x = 3,378,350,694.82
  5. Step 5: Solve for x
    x = 3,378,350,694.82/86,123.81
  6. Step 6: Final answer
    x = 39,226.67

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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.