Home / 47,128.38-70,685.28-30,605.60

Finding the Fourth Proportional to 47,128.38, 70,685.28 and 30,605.60

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Solution

The fourth proportional to 47,128.38, 70,685.28 and 30,605.60 is: 45,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.38 : 70,685.28 = 30,605.60 : x
  2. Step 2: Convert to fraction form
    47,128.38/70,685.28 = 30,605.60/x
  3. Step 3: Cross multiply
    47,128.38x = 70,685.28 × 30,605.60
  4. Step 4: Simplify right side
    47,128.38x = 2,163,365,052.14
  5. Step 5: Solve for x
    x = 2,163,365,052.14/47,128.38
  6. Step 6: Final answer
    x = 45,903.66

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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.