Home / 77,708.17-107,237.11-43,716.67

Finding the Fourth Proportional to 77,708.17, 107,237.11 and 43,716.67

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Solution

The fourth proportional to 77,708.17, 107,237.11 and 43,716.67 is: 60,328.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,708.17 : 107,237.11 = 43,716.67 : x
  2. Step 2: Convert to fraction form
    77,708.17/107,237.11 = 43,716.67/x
  3. Step 3: Cross multiply
    77,708.17x = 107,237.11 × 43,716.67
  4. Step 4: Simplify right side
    77,708.17x = 4,688,049,349.62
  5. Step 5: Solve for x
    x = 4,688,049,349.62/77,708.17
  6. Step 6: Final answer
    x = 60,328.91

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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.