Home / 77,350.10-116,025.23-21,190.69

Finding the Fourth Proportional to 77,350.10, 116,025.23 and 21,190.69

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Solution

The fourth proportional to 77,350.10, 116,025.23 and 21,190.69 is: 31,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,350.10 : 116,025.23 = 21,190.69 : x
  2. Step 2: Convert to fraction form
    77,350.10/116,025.23 = 21,190.69/x
  3. Step 3: Cross multiply
    77,350.10x = 116,025.23 × 21,190.69
  4. Step 4: Simplify right side
    77,350.10x = 2,458,654,681.11
  5. Step 5: Solve for x
    x = 2,458,654,681.11/77,350.10
  6. Step 6: Final answer
    x = 31,786.06

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1.5x scale

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.