Home / 91,774.28-137,644.99-58,395.20

Finding the Fourth Proportional to 91,774.28, 137,644.99 and 58,395.20

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Solution

The fourth proportional to 91,774.28, 137,644.99 and 58,395.20 is: 87,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,774.28 : 137,644.99 = 58,395.20 : x
  2. Step 2: Convert to fraction form
    91,774.28/137,644.99 = 58,395.20/x
  3. Step 3: Cross multiply
    91,774.28x = 137,644.99 × 58,395.20
  4. Step 4: Simplify right side
    91,774.28x = 8,037,805,885.84
  5. Step 5: Solve for x
    x = 8,037,805,885.84/91,774.28
  6. Step 6: Final answer
    x = 87,582.33

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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.