Home / 92,975.23-128,309.63-52,688.56

Finding the Fourth Proportional to 92,975.23, 128,309.63 and 52,688.56

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Solution

The fourth proportional to 92,975.23, 128,309.63 and 52,688.56 is: 72,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,975.23 : 128,309.63 = 52,688.56 : x
  2. Step 2: Convert to fraction form
    92,975.23/128,309.63 = 52,688.56/x
  3. Step 3: Cross multiply
    92,975.23x = 128,309.63 × 52,688.56
  4. Step 4: Simplify right side
    92,975.23x = 6,760,449,638.83
  5. Step 5: Solve for x
    x = 6,760,449,638.83/92,975.23
  6. Step 6: Final answer
    x = 72,712.37

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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.