Home / 74,862.72-103,263.36-47,977.44

Finding the Fourth Proportional to 74,862.72, 103,263.36 and 47,977.44

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Solution

The fourth proportional to 74,862.72, 103,263.36 and 47,977.44 is: 66,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862.72 : 103,263.36 = 47,977.44 : x
  2. Step 2: Convert to fraction form
    74,862.72/103,263.36 = 47,977.44/x
  3. Step 3: Cross multiply
    74,862.72x = 103,263.36 × 47,977.44
  4. Step 4: Simplify right side
    74,862.72x = 4,954,311,658.60
  5. Step 5: Solve for x
    x = 4,954,311,658.60/74,862.72
  6. Step 6: Final answer
    x = 66,178.62

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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.