Home / 92,976.17-128,309.82-52,688.59

Finding the Fourth Proportional to 92,976.17, 128,309.82 and 52,688.59

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Solution

The fourth proportional to 92,976.17, 128,309.82 and 52,688.59 is: 72,711.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,976.17 : 128,309.82 = 52,688.59 : x
  2. Step 2: Convert to fraction form
    92,976.17/128,309.82 = 52,688.59/x
  3. Step 3: Cross multiply
    92,976.17x = 128,309.82 × 52,688.59
  4. Step 4: Simplify right side
    92,976.17x = 6,760,463,998.71
  5. Step 5: Solve for x
    x = 6,760,463,998.71/92,976.17
  6. Step 6: Final answer
    x = 72,711.79

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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.