Home / 51,405.96-70,940.40-29,900.86

Finding the Fourth Proportional to 51,405.96, 70,940.40 and 29,900.86

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Solution

The fourth proportional to 51,405.96, 70,940.40 and 29,900.86 is: 41,263.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,405.96 : 70,940.40 = 29,900.86 : x
  2. Step 2: Convert to fraction form
    51,405.96/70,940.40 = 29,900.86/x
  3. Step 3: Cross multiply
    51,405.96x = 70,940.40 × 29,900.86
  4. Step 4: Simplify right side
    51,405.96x = 2,121,178,968.74
  5. Step 5: Solve for x
    x = 2,121,178,968.74/51,405.96
  6. Step 6: Final answer
    x = 41,263.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.