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Finding the Fourth Proportional to 40,157.61, 60,291.59 and 20,449.41

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Solution

The fourth proportional to 40,157.61, 60,291.59 and 20,449.41 is: 30,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,157.61 : 60,291.59 = 20,449.41 : x
  2. Step 2: Convert to fraction form
    40,157.61/60,291.59 = 20,449.41/x
  3. Step 3: Cross multiply
    40,157.61x = 60,291.59 × 20,449.41
  4. Step 4: Simplify right side
    40,157.61x = 1,232,927,341.21
  5. Step 5: Solve for x
    x = 1,232,927,341.21/40,157.61
  6. Step 6: Final answer
    x = 30,702.21

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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.