Home / 72,836.13-100,516.66-42,210.27

Finding the Fourth Proportional to 72,836.13, 100,516.66 and 42,210.27

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Solution

The fourth proportional to 72,836.13, 100,516.66 and 42,210.27 is: 58,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,836.13 : 100,516.66 = 42,210.27 : x
  2. Step 2: Convert to fraction form
    72,836.13/100,516.66 = 42,210.27/x
  3. Step 3: Cross multiply
    72,836.13x = 100,516.66 × 42,210.27
  4. Step 4: Simplify right side
    72,836.13x = 4,242,835,430.98
  5. Step 5: Solve for x
    x = 4,242,835,430.98/72,836.13
  6. Step 6: Final answer
    x = 58,251.80

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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.