Home / 79,026.84-118,539.45-19,861.20

Finding the Fourth Proportional to 79,026.84, 118,539.45 and 19,861.20

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Solution

The fourth proportional to 79,026.84, 118,539.45 and 19,861.20 is: 29,791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,026.84 : 118,539.45 = 19,861.20 : x
  2. Step 2: Convert to fraction form
    79,026.84/118,539.45 = 19,861.20/x
  3. Step 3: Cross multiply
    79,026.84x = 118,539.45 × 19,861.20
  4. Step 4: Simplify right side
    79,026.84x = 2,354,335,724.34
  5. Step 5: Solve for x
    x = 2,354,335,724.34/79,026.84
  6. Step 6: Final answer
    x = 29,791.60

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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.