Home / 77,869.43-116,834.45-31,135.67

Finding the Fourth Proportional to 77,869.43, 116,834.45 and 31,135.67

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Solution

The fourth proportional to 77,869.43, 116,834.45 and 31,135.67 is: 46,715.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,869.43 : 116,834.45 = 31,135.67 : x
  2. Step 2: Convert to fraction form
    77,869.43/116,834.45 = 31,135.67/x
  3. Step 3: Cross multiply
    77,869.43x = 116,834.45 × 31,135.67
  4. Step 4: Simplify right side
    77,869.43x = 3,637,718,879.83
  5. Step 5: Solve for x
    x = 3,637,718,879.83/77,869.43
  6. Step 6: Final answer
    x = 46,715.62

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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.