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Finding the Fourth Proportional to 73,942.70, 102,059.06 and 42,130.35

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Solution

The fourth proportional to 73,942.70, 102,059.06 and 42,130.35 is: 58,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,942.70 : 102,059.06 = 42,130.35 : x
  2. Step 2: Convert to fraction form
    73,942.70/102,059.06 = 42,130.35/x
  3. Step 3: Cross multiply
    73,942.70x = 102,059.06 × 42,130.35
  4. Step 4: Simplify right side
    73,942.70x = 4,299,783,707.82
  5. Step 5: Solve for x
    x = 4,299,783,707.82/73,942.70
  6. Step 6: Final answer
    x = 58,150.22

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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.