Home / 77,429.22-116,142.47-21,269.12

Finding the Fourth Proportional to 77,429.22, 116,142.47 and 21,269.12

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Solution

The fourth proportional to 77,429.22, 116,142.47 and 21,269.12 is: 31,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,429.22 : 116,142.47 = 21,269.12 : x
  2. Step 2: Convert to fraction form
    77,429.22/116,142.47 = 21,269.12/x
  3. Step 3: Cross multiply
    77,429.22x = 116,142.47 × 21,269.12
  4. Step 4: Simplify right side
    77,429.22x = 2,470,247,524.23
  5. Step 5: Solve for x
    x = 2,470,247,524.23/77,429.22
  6. Step 6: Final answer
    x = 31,903.30

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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.