Home / 103,784.52-155,555.81-47,630.57

Finding the Fourth Proportional to 103,784.52, 155,555.81 and 47,630.57

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Solution

The fourth proportional to 103,784.52, 155,555.81 and 47,630.57 is: 71,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,784.52 : 155,555.81 = 47,630.57 : x
  2. Step 2: Convert to fraction form
    103,784.52/155,555.81 = 47,630.57/x
  3. Step 3: Cross multiply
    103,784.52x = 155,555.81 × 47,630.57
  4. Step 4: Simplify right side
    103,784.52x = 7,409,211,059.79
  5. Step 5: Solve for x
    x = 7,409,211,059.79/103,784.52
  6. Step 6: Final answer
    x = 71,390.33

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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.