Home / 72,971.88-109,260.40-37,837.68

Finding the Fourth Proportional to 72,971.88, 109,260.40 and 37,837.68

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Solution

The fourth proportional to 72,971.88, 109,260.40 and 37,837.68 is: 56,654.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,971.88 : 109,260.40 = 37,837.68 : x
  2. Step 2: Convert to fraction form
    72,971.88/109,260.40 = 37,837.68/x
  3. Step 3: Cross multiply
    72,971.88x = 109,260.40 × 37,837.68
  4. Step 4: Simplify right side
    72,971.88x = 4,134,160,051.87
  5. Step 5: Solve for x
    x = 4,134,160,051.87/72,971.88
  6. Step 6: Final answer
    x = 56,654.15

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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.