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Finding the Fourth Proportional to 73,754.70, 101,751.75 and 42,689.51

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Solution

The fourth proportional to 73,754.70, 101,751.75 and 42,689.51 is: 58,894.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,754.70 : 101,751.75 = 42,689.51 : x
  2. Step 2: Convert to fraction form
    73,754.70/101,751.75 = 42,689.51/x
  3. Step 3: Cross multiply
    73,754.70x = 101,751.75 × 42,689.51
  4. Step 4: Simplify right side
    73,754.70x = 4,343,732,349.14
  5. Step 5: Solve for x
    x = 4,343,732,349.14/73,754.70
  6. Step 6: Final answer
    x = 58,894.31

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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.