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Finding the Fourth Proportional to 43,889.76, 65,756.88 and 29,970.72

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Solution

The fourth proportional to 43,889.76, 65,756.88 and 29,970.72 is: 44,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,889.76 : 65,756.88 = 29,970.72 : x
  2. Step 2: Convert to fraction form
    43,889.76/65,756.88 = 29,970.72/x
  3. Step 3: Cross multiply
    43,889.76x = 65,756.88 × 29,970.72
  4. Step 4: Simplify right side
    43,889.76x = 1,970,781,038.55
  5. Step 5: Solve for x
    x = 1,970,781,038.55/43,889.76
  6. Step 6: Final answer
    x = 44,902.98

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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.