Home / 52,104.95-78,157.17-12,662.18

Finding the Fourth Proportional to 52,104.95, 78,157.17 and 12,662.18

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Solution

The fourth proportional to 52,104.95, 78,157.17 and 12,662.18 is: 18,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,104.95 : 78,157.17 = 12,662.18 : x
  2. Step 2: Convert to fraction form
    52,104.95/78,157.17 = 12,662.18/x
  3. Step 3: Cross multiply
    52,104.95x = 78,157.17 × 12,662.18
  4. Step 4: Simplify right side
    52,104.95x = 989,640,154.83
  5. Step 5: Solve for x
    x = 989,640,154.83/52,104.95
  6. Step 6: Final answer
    x = 18,993.21

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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.