Home / 74,789.10-103,190.27-45,710.04

Finding the Fourth Proportional to 74,789.10, 103,190.27 and 45,710.04

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Solution

The fourth proportional to 74,789.10, 103,190.27 and 45,710.04 is: 63,068.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,789.10 : 103,190.27 = 45,710.04 : x
  2. Step 2: Convert to fraction form
    74,789.10/103,190.27 = 45,710.04/x
  3. Step 3: Cross multiply
    74,789.10x = 103,190.27 × 45,710.04
  4. Step 4: Simplify right side
    74,789.10x = 4,716,831,369.31
  5. Step 5: Solve for x
    x = 4,716,831,369.31/74,789.10
  6. Step 6: Final answer
    x = 63,068.43

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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.