Home / 45,412.38-68,130.09-14,247.90

Finding the Fourth Proportional to 45,412.38, 68,130.09 and 14,247.90

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Solution

The fourth proportional to 45,412.38, 68,130.09 and 14,247.90 is: 21,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,412.38 : 68,130.09 = 14,247.90 : x
  2. Step 2: Convert to fraction form
    45,412.38/68,130.09 = 14,247.90/x
  3. Step 3: Cross multiply
    45,412.38x = 68,130.09 × 14,247.90
  4. Step 4: Simplify right side
    45,412.38x = 970,710,709.31
  5. Step 5: Solve for x
    x = 970,710,709.31/45,412.38
  6. Step 6: Final answer
    x = 21,375.46

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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.