Home / 72,975.10-109,428.64-37,905.34

Finding the Fourth Proportional to 72,975.10, 109,428.64 and 37,905.34

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Solution

The fourth proportional to 72,975.10, 109,428.64 and 37,905.34 is: 56,840.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,975.10 : 109,428.64 = 37,905.34 : x
  2. Step 2: Convert to fraction form
    72,975.10/109,428.64 = 37,905.34/x
  3. Step 3: Cross multiply
    72,975.10x = 109,428.64 × 37,905.34
  4. Step 4: Simplify right side
    72,975.10x = 4,147,929,804.94
  5. Step 5: Solve for x
    x = 4,147,929,804.94/72,975.10
  6. Step 6: Final answer
    x = 56,840.34

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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.