Home / 43,139.90-64,725.41-15,064.09

Finding the Fourth Proportional to 43,139.90, 64,725.41 and 15,064.09

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Solution

The fourth proportional to 43,139.90, 64,725.41 and 15,064.09 is: 22,601.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.90 : 64,725.41 = 15,064.09 : x
  2. Step 2: Convert to fraction form
    43,139.90/64,725.41 = 15,064.09/x
  3. Step 3: Cross multiply
    43,139.90x = 64,725.41 × 15,064.09
  4. Step 4: Simplify right side
    43,139.90x = 975,029,401.53
  5. Step 5: Solve for x
    x = 975,029,401.53/43,139.90
  6. Step 6: Final answer
    x = 22,601.57

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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.