Home / 79,721.99-110,015.03-43,915.34

Finding the Fourth Proportional to 79,721.99, 110,015.03 and 43,915.34

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Solution

The fourth proportional to 79,721.99, 110,015.03 and 43,915.34 is: 60,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,721.99 : 110,015.03 = 43,915.34 : x
  2. Step 2: Convert to fraction form
    79,721.99/110,015.03 = 43,915.34/x
  3. Step 3: Cross multiply
    79,721.99x = 110,015.03 × 43,915.34
  4. Step 4: Simplify right side
    79,721.99x = 4,831,346,677.91
  5. Step 5: Solve for x
    x = 4,831,346,677.91/79,721.99
  6. Step 6: Final answer
    x = 60,602.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.