Home / 43,099.49-64,649.12-13,519.55

Finding the Fourth Proportional to 43,099.49, 64,649.12 and 13,519.55

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Solution

The fourth proportional to 43,099.49, 64,649.12 and 13,519.55 is: 20,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,099.49 : 64,649.12 = 13,519.55 : x
  2. Step 2: Convert to fraction form
    43,099.49/64,649.12 = 13,519.55/x
  3. Step 3: Cross multiply
    43,099.49x = 64,649.12 × 13,519.55
  4. Step 4: Simplify right side
    43,099.49x = 874,026,619.45
  5. Step 5: Solve for x
    x = 874,026,619.45/43,099.49
  6. Step 6: Final answer
    x = 20,279.28

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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.