Home / 45,426.40-68,129.28-14,254.24

Finding the Fourth Proportional to 45,426.40, 68,129.28 and 14,254.24

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Solution

The fourth proportional to 45,426.40, 68,129.28 and 14,254.24 is: 21,378.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,426.40 : 68,129.28 = 14,254.24 : x
  2. Step 2: Convert to fraction form
    45,426.40/68,129.28 = 14,254.24/x
  3. Step 3: Cross multiply
    45,426.40x = 68,129.28 × 14,254.24
  4. Step 4: Simplify right side
    45,426.40x = 971,131,108.15
  5. Step 5: Solve for x
    x = 971,131,108.15/45,426.40
  6. Step 6: Final answer
    x = 21,378.12

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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.