Home / 78,941.88-118,368.90-26,322.66

Finding the Fourth Proportional to 78,941.88, 118,368.90 and 26,322.66

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Solution

The fourth proportional to 78,941.88, 118,368.90 and 26,322.66 is: 39,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941.88 : 118,368.90 = 26,322.66 : x
  2. Step 2: Convert to fraction form
    78,941.88/118,368.90 = 26,322.66/x
  3. Step 3: Cross multiply
    78,941.88x = 118,368.90 × 26,322.66
  4. Step 4: Simplify right side
    78,941.88x = 3,115,784,309.27
  5. Step 5: Solve for x
    x = 3,115,784,309.27/78,941.88
  6. Step 6: Final answer
    x = 39,469.35

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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.