Home / 77,830.92-116,674.57-30,478.26

Finding the Fourth Proportional to 77,830.92, 116,674.57 and 30,478.26

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Solution

The fourth proportional to 77,830.92, 116,674.57 and 30,478.26 is: 45,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,830.92 : 116,674.57 = 30,478.26 : x
  2. Step 2: Convert to fraction form
    77,830.92/116,674.57 = 30,478.26/x
  3. Step 3: Cross multiply
    77,830.92x = 116,674.57 × 30,478.26
  4. Step 4: Simplify right side
    77,830.92x = 3,556,037,879.85
  5. Step 5: Solve for x
    x = 3,556,037,879.85/77,830.92
  6. Step 6: Final answer
    x = 45,689.27

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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.