Home / 78,741.23-118,086.17-26,136.59

Finding the Fourth Proportional to 78,741.23, 118,086.17 and 26,136.59

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Solution

The fourth proportional to 78,741.23, 118,086.17 and 26,136.59 is: 39,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,741.23 : 118,086.17 = 26,136.59 : x
  2. Step 2: Convert to fraction form
    78,741.23/118,086.17 = 26,136.59/x
  3. Step 3: Cross multiply
    78,741.23x = 118,086.17 × 26,136.59
  4. Step 4: Simplify right side
    78,741.23x = 3,086,369,088.85
  5. Step 5: Solve for x
    x = 3,086,369,088.85/78,741.23
  6. Step 6: Final answer
    x = 39,196.36

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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.