Home / 48,172.50-66,455.60-31,182.21

Finding the Fourth Proportional to 48,172.50, 66,455.60 and 31,182.21

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Solution

The fourth proportional to 48,172.50, 66,455.60 and 31,182.21 is: 43,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,172.50 : 66,455.60 = 31,182.21 : x
  2. Step 2: Convert to fraction form
    48,172.50/66,455.60 = 31,182.21/x
  3. Step 3: Cross multiply
    48,172.50x = 66,455.60 × 31,182.21
  4. Step 4: Simplify right side
    48,172.50x = 2,072,232,318.96
  5. Step 5: Solve for x
    x = 2,072,232,318.96/48,172.50
  6. Step 6: Final answer
    x = 43,016.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.