Home / 47,905.50-66,151.44-30,031.32

Finding the Fourth Proportional to 47,905.50, 66,151.44 and 30,031.32

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Solution

The fourth proportional to 47,905.50, 66,151.44 and 30,031.32 is: 41,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,905.50 : 66,151.44 = 30,031.32 : x
  2. Step 2: Convert to fraction form
    47,905.50/66,151.44 = 30,031.32/x
  3. Step 3: Cross multiply
    47,905.50x = 66,151.44 × 30,031.32
  4. Step 4: Simplify right side
    47,905.50x = 1,986,615,063.10
  5. Step 5: Solve for x
    x = 1,986,615,063.10/47,905.50
  6. Step 6: Final answer
    x = 41,469.46

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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.