Home / 77,707.77-107,234.33-43,718.15

Finding the Fourth Proportional to 77,707.77, 107,234.33 and 43,718.15

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Solution

The fourth proportional to 77,707.77, 107,234.33 and 43,718.15 is: 60,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,707.77 : 107,234.33 = 43,718.15 : x
  2. Step 2: Convert to fraction form
    77,707.77/107,234.33 = 43,718.15/x
  3. Step 3: Cross multiply
    77,707.77x = 107,234.33 × 43,718.15
  4. Step 4: Simplify right side
    77,707.77x = 4,688,085,769.33
  5. Step 5: Solve for x
    x = 4,688,085,769.33/77,707.77
  6. Step 6: Final answer
    x = 60,329.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.