Home / 45,109.48-67,646.22-13,936.36

Finding the Fourth Proportional to 45,109.48, 67,646.22 and 13,936.36

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Solution

The fourth proportional to 45,109.48, 67,646.22 and 13,936.36 is: 20,898.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,109.48 : 67,646.22 = 13,936.36 : x
  2. Step 2: Convert to fraction form
    45,109.48/67,646.22 = 13,936.36/x
  3. Step 3: Cross multiply
    45,109.48x = 67,646.22 × 13,936.36
  4. Step 4: Simplify right side
    45,109.48x = 942,742,074.56
  5. Step 5: Solve for x
    x = 942,742,074.56/45,109.48
  6. Step 6: Final answer
    x = 20,898.98

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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.