Home / 92,769.22-128,035.27-58,780.87

Finding the Fourth Proportional to 92,769.22, 128,035.27 and 58,780.87

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Solution

The fourth proportional to 92,769.22, 128,035.27 and 58,780.87 is: 81,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,769.22 : 128,035.27 = 58,780.87 : x
  2. Step 2: Convert to fraction form
    92,769.22/128,035.27 = 58,780.87/x
  3. Step 3: Cross multiply
    92,769.22x = 128,035.27 × 58,780.87
  4. Step 4: Simplify right side
    92,769.22x = 7,526,025,200.19
  5. Step 5: Solve for x
    x = 7,526,025,200.19/92,769.22
  6. Step 6: Final answer
    x = 81,126.31

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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.