Home / 72,890.81-109,089.34-44,828.66

Finding the Fourth Proportional to 72,890.81, 109,089.34 and 44,828.66

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Solution

The fourth proportional to 72,890.81, 109,089.34 and 44,828.66 is: 67,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,890.81 : 109,089.34 = 44,828.66 : x
  2. Step 2: Convert to fraction form
    72,890.81/109,089.34 = 44,828.66/x
  3. Step 3: Cross multiply
    72,890.81x = 109,089.34 × 44,828.66
  4. Step 4: Simplify right side
    72,890.81x = 4,890,329,093.14
  5. Step 5: Solve for x
    x = 4,890,329,093.14/72,890.81
  6. Step 6: Final answer
    x = 67,091.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.