Home / 86,672.09-129,901.80-49,263.50

Finding the Fourth Proportional to 86,672.09, 129,901.80 and 49,263.50

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Solution

The fourth proportional to 86,672.09, 129,901.80 and 49,263.50 is: 73,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,672.09 : 129,901.80 = 49,263.50 : x
  2. Step 2: Convert to fraction form
    86,672.09/129,901.80 = 49,263.50/x
  3. Step 3: Cross multiply
    86,672.09x = 129,901.80 × 49,263.50
  4. Step 4: Simplify right side
    86,672.09x = 6,399,417,324.30
  5. Step 5: Solve for x
    x = 6,399,417,324.30/86,672.09
  6. Step 6: Final answer
    x = 73,834.81

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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.