Home / 78,465.10-108,271.23-50,150.70

Finding the Fourth Proportional to 78,465.10, 108,271.23 and 50,150.70

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Solution

The fourth proportional to 78,465.10, 108,271.23 and 50,150.70 is: 69,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,465.10 : 108,271.23 = 50,150.70 : x
  2. Step 2: Convert to fraction form
    78,465.10/108,271.23 = 50,150.70/x
  3. Step 3: Cross multiply
    78,465.10x = 108,271.23 × 50,150.70
  4. Step 4: Simplify right side
    78,465.10x = 5,429,877,974.36
  5. Step 5: Solve for x
    x = 5,429,877,974.36/78,465.10
  6. Step 6: Final answer
    x = 69,201.19

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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.