Home / 69,084.20-103,640.70-39,477.80

Finding the Fourth Proportional to 69,084.20, 103,640.70 and 39,477.80

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Solution

The fourth proportional to 69,084.20, 103,640.70 and 39,477.80 is: 59,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,084.20 : 103,640.70 = 39,477.80 : x
  2. Step 2: Convert to fraction form
    69,084.20/103,640.70 = 39,477.80/x
  3. Step 3: Cross multiply
    69,084.20x = 103,640.70 × 39,477.80
  4. Step 4: Simplify right side
    69,084.20x = 4,091,506,826.46
  5. Step 5: Solve for x
    x = 4,091,506,826.46/69,084.20
  6. Step 6: Final answer
    x = 59,224.93

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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.