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Finding the Fourth Proportional to 47,937.88, 66,162.90 and 30,048.40

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Solution

The fourth proportional to 47,937.88, 66,162.90 and 30,048.40 is: 41,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,937.88 : 66,162.90 = 30,048.40 : x
  2. Step 2: Convert to fraction form
    47,937.88/66,162.90 = 30,048.40/x
  3. Step 3: Cross multiply
    47,937.88x = 66,162.90 × 30,048.40
  4. Step 4: Simplify right side
    47,937.88x = 1,988,089,284.36
  5. Step 5: Solve for x
    x = 1,988,089,284.36/47,937.88
  6. Step 6: Final answer
    x = 41,472.20

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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.