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Finding the Fourth Proportional to 79,510.81, 119,280.81 and 26,205.94

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Solution

The fourth proportional to 79,510.81, 119,280.81 and 26,205.94 is: 39,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,510.81 : 119,280.81 = 26,205.94 : x
  2. Step 2: Convert to fraction form
    79,510.81/119,280.81 = 26,205.94/x
  3. Step 3: Cross multiply
    79,510.81x = 119,280.81 × 26,205.94
  4. Step 4: Simplify right side
    79,510.81x = 3,125,865,750.01
  5. Step 5: Solve for x
    x = 3,125,865,750.01/79,510.81
  6. Step 6: Final answer
    x = 39,313.72

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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.