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Finding the Fourth Proportional to 50,741.70, 70,051.70 and 30,603.66

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Solution

The fourth proportional to 50,741.70, 70,051.70 and 30,603.66 is: 42,250.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,741.70 : 70,051.70 = 30,603.66 : x
  2. Step 2: Convert to fraction form
    50,741.70/70,051.70 = 30,603.66/x
  3. Step 3: Cross multiply
    50,741.70x = 70,051.70 × 30,603.66
  4. Step 4: Simplify right side
    50,741.70x = 2,143,838,256.20
  5. Step 5: Solve for x
    x = 2,143,838,256.20/50,741.70
  6. Step 6: Final answer
    x = 42,250.03

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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.