Home / 91,963.68-137,673.36-56,790.24

Finding the Fourth Proportional to 91,963.68, 137,673.36 and 56,790.24

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Solution

The fourth proportional to 91,963.68, 137,673.36 and 56,790.24 is: 85,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,963.68 : 137,673.36 = 56,790.24 : x
  2. Step 2: Convert to fraction form
    91,963.68/137,673.36 = 56,790.24/x
  3. Step 3: Cross multiply
    91,963.68x = 137,673.36 × 56,790.24
  4. Step 4: Simplify right side
    91,963.68x = 7,818,503,156.01
  5. Step 5: Solve for x
    x = 7,818,503,156.01/91,963.68
  6. Step 6: Final answer
    x = 85,017.29

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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.