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Finding the Fourth Proportional to 79,045.53, 118,559.57 and 19,881.23

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Solution

The fourth proportional to 79,045.53, 118,559.57 and 19,881.23 is: 29,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,045.53 : 118,559.57 = 19,881.23 : x
  2. Step 2: Convert to fraction form
    79,045.53/118,559.57 = 19,881.23/x
  3. Step 3: Cross multiply
    79,045.53x = 118,559.57 × 19,881.23
  4. Step 4: Simplify right side
    79,045.53x = 2,357,109,387.67
  5. Step 5: Solve for x
    x = 2,357,109,387.67/79,045.53
  6. Step 6: Final answer
    x = 29,819.64

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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.