Home / 45,937.10-68,901.60-12,654.20

Finding the Fourth Proportional to 45,937.10, 68,901.60 and 12,654.20

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Solution

The fourth proportional to 45,937.10, 68,901.60 and 12,654.20 is: 18,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,937.10 : 68,901.60 = 12,654.20 : x
  2. Step 2: Convert to fraction form
    45,937.10/68,901.60 = 12,654.20/x
  3. Step 3: Cross multiply
    45,937.10x = 68,901.60 × 12,654.20
  4. Step 4: Simplify right side
    45,937.10x = 871,894,626.72
  5. Step 5: Solve for x
    x = 871,894,626.72/45,937.10
  6. Step 6: Final answer
    x = 18,980.18

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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.