Home / 72,983.19-100,717.92-42,761.28

Finding the Fourth Proportional to 72,983.19, 100,717.92 and 42,761.28

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Solution

The fourth proportional to 72,983.19, 100,717.92 and 42,761.28 is: 59,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,983.19 : 100,717.92 = 42,761.28 : x
  2. Step 2: Convert to fraction form
    72,983.19/100,717.92 = 42,761.28/x
  3. Step 3: Cross multiply
    72,983.19x = 100,717.92 × 42,761.28
  4. Step 4: Simplify right side
    72,983.19x = 4,306,827,178.14
  5. Step 5: Solve for x
    x = 4,306,827,178.14/72,983.19
  6. Step 6: Final answer
    x = 59,011.22

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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.