Home / 47,128.80-70,685.87-30,605.97

Finding the Fourth Proportional to 47,128.80, 70,685.87 and 30,605.97

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Solution

The fourth proportional to 47,128.80, 70,685.87 and 30,605.97 is: 45,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.80 : 70,685.87 = 30,605.97 : x
  2. Step 2: Convert to fraction form
    47,128.80/70,685.87 = 30,605.97/x
  3. Step 3: Cross multiply
    47,128.80x = 70,685.87 × 30,605.97
  4. Step 4: Simplify right side
    47,128.80x = 2,163,409,463.61
  5. Step 5: Solve for x
    x = 2,163,409,463.61/47,128.80
  6. Step 6: Final answer
    x = 45,904.19

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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.