Home / 45,427.40-68,130.78-14,255.24

Finding the Fourth Proportional to 45,427.40, 68,130.78 and 14,255.24

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Solution

The fourth proportional to 45,427.40, 68,130.78 and 14,255.24 is: 21,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,427.40 : 68,130.78 = 14,255.24 : x
  2. Step 2: Convert to fraction form
    45,427.40/68,130.78 = 14,255.24/x
  3. Step 3: Cross multiply
    45,427.40x = 68,130.78 × 14,255.24
  4. Step 4: Simplify right side
    45,427.40x = 971,220,620.29
  5. Step 5: Solve for x
    x = 971,220,620.29/45,427.40
  6. Step 6: Final answer
    x = 21,379.62

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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.