Home / 77,478.23-116,217.09-43,728.95

Finding the Fourth Proportional to 77,478.23, 116,217.09 and 43,728.95

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Solution

The fourth proportional to 77,478.23, 116,217.09 and 43,728.95 is: 65,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,478.23 : 116,217.09 = 43,728.95 : x
  2. Step 2: Convert to fraction form
    77,478.23/116,217.09 = 43,728.95/x
  3. Step 3: Cross multiply
    77,478.23x = 116,217.09 × 43,728.95
  4. Step 4: Simplify right side
    77,478.23x = 5,082,050,736.67
  5. Step 5: Solve for x
    x = 5,082,050,736.67/77,478.23
  6. Step 6: Final answer
    x = 65,593.28

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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.