Home / 77,206.33-115,829.47-45,212.43

Finding the Fourth Proportional to 77,206.33, 115,829.47 and 45,212.43

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Solution

The fourth proportional to 77,206.33, 115,829.47 and 45,212.43 is: 67,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,206.33 : 115,829.47 = 45,212.43 : x
  2. Step 2: Convert to fraction form
    77,206.33/115,829.47 = 45,212.43/x
  3. Step 3: Cross multiply
    77,206.33x = 115,829.47 × 45,212.43
  4. Step 4: Simplify right side
    77,206.33x = 5,236,931,516.49
  5. Step 5: Solve for x
    x = 5,236,931,516.49/77,206.33
  6. Step 6: Final answer
    x = 67,830.34

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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.