Home / 86,627.36-129,992.88-49,717.28

Finding the Fourth Proportional to 86,627.36, 129,992.88 and 49,717.28

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Solution

The fourth proportional to 86,627.36, 129,992.88 and 49,717.28 is: 74,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,627.36 : 129,992.88 = 49,717.28 : x
  2. Step 2: Convert to fraction form
    86,627.36/129,992.88 = 49,717.28/x
  3. Step 3: Cross multiply
    86,627.36x = 129,992.88 × 49,717.28
  4. Step 4: Simplify right side
    86,627.36x = 6,462,892,412.97
  5. Step 5: Solve for x
    x = 6,462,892,412.97/86,627.36
  6. Step 6: Final answer
    x = 74,605.67

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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.