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Finding the Fourth Proportional to 41,985.60, 62,978.40 and 36,518.10

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Solution

The fourth proportional to 41,985.60, 62,978.40 and 36,518.10 is: 54,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,985.60 : 62,978.40 = 36,518.10 : x
  2. Step 2: Convert to fraction form
    41,985.60/62,978.40 = 36,518.10/x
  3. Step 3: Cross multiply
    41,985.60x = 62,978.40 × 36,518.10
  4. Step 4: Simplify right side
    41,985.60x = 2,299,851,509.04
  5. Step 5: Solve for x
    x = 2,299,851,509.04/41,985.60
  6. Step 6: Final answer
    x = 54,777.15

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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.