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Finding the Fourth Proportional to 86,804.95, 119,790.25 and 49,079.35

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Solution

The fourth proportional to 86,804.95, 119,790.25 and 49,079.35 is: 67,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,804.95 : 119,790.25 = 49,079.35 : x
  2. Step 2: Convert to fraction form
    86,804.95/119,790.25 = 49,079.35/x
  3. Step 3: Cross multiply
    86,804.95x = 119,790.25 × 49,079.35
  4. Step 4: Simplify right side
    86,804.95x = 5,879,227,606.34
  5. Step 5: Solve for x
    x = 5,879,227,606.34/86,804.95
  6. Step 6: Final answer
    x = 67,729.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.