Home / 85,129.02-127,737.27-37,776.56

Finding the Fourth Proportional to 85,129.02, 127,737.27 and 37,776.56

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Solution

The fourth proportional to 85,129.02, 127,737.27 and 37,776.56 is: 56,684.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,129.02 : 127,737.27 = 37,776.56 : x
  2. Step 2: Convert to fraction form
    85,129.02/127,737.27 = 37,776.56/x
  3. Step 3: Cross multiply
    85,129.02x = 127,737.27 × 37,776.56
  4. Step 4: Simplify right side
    85,129.02x = 4,825,474,005.70
  5. Step 5: Solve for x
    x = 4,825,474,005.70/85,129.02
  6. Step 6: Final answer
    x = 56,684.24

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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.