Home / 77,826.51-107,402.67-43,836.21

Finding the Fourth Proportional to 77,826.51, 107,402.67 and 43,836.21

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Solution

The fourth proportional to 77,826.51, 107,402.67 and 43,836.21 is: 60,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,826.51 : 107,402.67 = 43,836.21 : x
  2. Step 2: Convert to fraction form
    77,826.51/107,402.67 = 43,836.21/x
  3. Step 3: Cross multiply
    77,826.51x = 107,402.67 × 43,836.21
  4. Step 4: Simplify right side
    77,826.51x = 4,708,125,996.68
  5. Step 5: Solve for x
    x = 4,708,125,996.68/77,826.51
  6. Step 6: Final answer
    x = 60,495.14

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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.