Home / 76,680.86-114,916.26-57,945.56

Finding the Fourth Proportional to 76,680.86, 114,916.26 and 57,945.56

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Solution

The fourth proportional to 76,680.86, 114,916.26 and 57,945.56 is: 86,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,680.86 : 114,916.26 = 57,945.56 : x
  2. Step 2: Convert to fraction form
    76,680.86/114,916.26 = 57,945.56/x
  3. Step 3: Cross multiply
    76,680.86x = 114,916.26 × 57,945.56
  4. Step 4: Simplify right side
    76,680.86x = 6,658,887,038.81
  5. Step 5: Solve for x
    x = 6,658,887,038.81/76,680.86
  6. Step 6: Final answer
    x = 86,838.97

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1.5x scale

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.