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Finding the Fourth Proportional to 69,439.52, 104,059.52 and 39,477.60

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Solution

The fourth proportional to 69,439.52, 104,059.52 and 39,477.60 is: 59,159.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,439.52 : 104,059.52 = 39,477.60 : x
  2. Step 2: Convert to fraction form
    69,439.52/104,059.52 = 39,477.60/x
  3. Step 3: Cross multiply
    69,439.52x = 104,059.52 × 39,477.60
  4. Step 4: Simplify right side
    69,439.52x = 4,108,020,106.75
  5. Step 5: Solve for x
    x = 4,108,020,106.75/69,439.52
  6. Step 6: Final answer
    x = 59,159.68

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1.5x scale

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.