Home / 86,883.14-130,335.45-30,711.67

Finding the Fourth Proportional to 86,883.14, 130,335.45 and 30,711.67

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Solution

The fourth proportional to 86,883.14, 130,335.45 and 30,711.67 is: 46,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,883.14 : 130,335.45 = 30,711.67 : x
  2. Step 2: Convert to fraction form
    86,883.14/130,335.45 = 30,711.67/x
  3. Step 3: Cross multiply
    86,883.14x = 130,335.45 × 30,711.67
  4. Step 4: Simplify right side
    86,883.14x = 4,002,819,329.70
  5. Step 5: Solve for x
    x = 4,002,819,329.70/86,883.14
  6. Step 6: Final answer
    x = 46,071.30

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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.