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Finding the Fourth Proportional to 78,986.01, 118,479.01 and 26,395.49

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Solution

The fourth proportional to 78,986.01, 118,479.01 and 26,395.49 is: 39,593.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,986.01 : 118,479.01 = 26,395.49 : x
  2. Step 2: Convert to fraction form
    78,986.01/118,479.01 = 26,395.49/x
  3. Step 3: Cross multiply
    78,986.01x = 118,479.01 × 26,395.49
  4. Step 4: Simplify right side
    78,986.01x = 3,127,311,490.67
  5. Step 5: Solve for x
    x = 3,127,311,490.67/78,986.01
  6. Step 6: Final answer
    x = 39,593.23

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1.5x scale

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.