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Finding the Fourth Proportional to 43,602, 65,403.62 and 12,437.25

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Solution

The fourth proportional to 43,602, 65,403.62 and 12,437.25 is: 18,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,602 : 65,403.62 = 12,437.25 : x
  2. Step 2: Convert to fraction form
    43,602/65,403.62 = 12,437.25/x
  3. Step 3: Cross multiply
    43,602x = 65,403.62 × 12,437.25
  4. Step 4: Simplify right side
    43,602x = 813,441,110.66
  5. Step 5: Solve for x
    x = 813,441,110.66/43,602
  6. Step 6: Final answer
    x = 18,656.05

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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.