Home / 45,436.32-68,157.20-14,271.57

Finding the Fourth Proportional to 45,436.32, 68,157.20 and 14,271.57

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Solution

The fourth proportional to 45,436.32, 68,157.20 and 14,271.57 is: 21,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,436.32 : 68,157.20 = 14,271.57 : x
  2. Step 2: Convert to fraction form
    45,436.32/68,157.20 = 14,271.57/x
  3. Step 3: Cross multiply
    45,436.32x = 68,157.20 × 14,271.57
  4. Step 4: Simplify right side
    45,436.32x = 972,710,250.80
  5. Step 5: Solve for x
    x = 972,710,250.80/45,436.32
  6. Step 6: Final answer
    x = 21,408.21

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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.