Home / 77,473.09-106,908.37-43,478.40

Finding the Fourth Proportional to 77,473.09, 106,908.37 and 43,478.40

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Solution

The fourth proportional to 77,473.09, 106,908.37 and 43,478.40 is: 59,997.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,473.09 : 106,908.37 = 43,478.40 : x
  2. Step 2: Convert to fraction form
    77,473.09/106,908.37 = 43,478.40/x
  3. Step 3: Cross multiply
    77,473.09x = 106,908.37 × 43,478.40
  4. Step 4: Simplify right side
    77,473.09x = 4,648,204,874.21
  5. Step 5: Solve for x
    x = 4,648,204,874.21/77,473.09
  6. Step 6: Final answer
    x = 59,997.67

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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.