Home / 78,849.64-118,293.30-26,259.56

Finding the Fourth Proportional to 78,849.64, 118,293.30 and 26,259.56

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Solution

The fourth proportional to 78,849.64, 118,293.30 and 26,259.56 is: 39,395.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,849.64 : 118,293.30 = 26,259.56 : x
  2. Step 2: Convert to fraction form
    78,849.64/118,293.30 = 26,259.56/x
  3. Step 3: Cross multiply
    78,849.64x = 118,293.30 × 26,259.56
  4. Step 4: Simplify right side
    78,849.64x = 3,106,330,008.95
  5. Step 5: Solve for x
    x = 3,106,330,008.95/78,849.64
  6. Step 6: Final answer
    x = 39,395.61

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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.