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Finding the Fourth Proportional to 60,409.18, 90,627.95 and 18,289.59

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Solution

The fourth proportional to 60,409.18, 90,627.95 and 18,289.59 is: 27,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,409.18 : 90,627.95 = 18,289.59 : x
  2. Step 2: Convert to fraction form
    60,409.18/90,627.95 = 18,289.59/x
  3. Step 3: Cross multiply
    60,409.18x = 90,627.95 × 18,289.59
  4. Step 4: Simplify right side
    60,409.18x = 1,657,548,048.04
  5. Step 5: Solve for x
    x = 1,657,548,048.04/60,409.18
  6. Step 6: Final answer
    x = 27,438.68

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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.