Home / 43,134.87-64,701.66-13,554.48

Finding the Fourth Proportional to 43,134.87, 64,701.66 and 13,554.48

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Solution

The fourth proportional to 43,134.87, 64,701.66 and 13,554.48 is: 20,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,134.87 : 64,701.66 = 13,554.48 : x
  2. Step 2: Convert to fraction form
    43,134.87/64,701.66 = 13,554.48/x
  3. Step 3: Cross multiply
    43,134.87x = 64,701.66 × 13,554.48
  4. Step 4: Simplify right side
    43,134.87x = 876,997,356.44
  5. Step 5: Solve for x
    x = 876,997,356.44/43,134.87
  6. Step 6: Final answer
    x = 20,331.52

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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.