Home / 77,021.80-106,286.28-43,023.54

Finding the Fourth Proportional to 77,021.80, 106,286.28 and 43,023.54

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Solution

The fourth proportional to 77,021.80, 106,286.28 and 43,023.54 is: 59,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,021.80 : 106,286.28 = 43,023.54 : x
  2. Step 2: Convert to fraction form
    77,021.80/106,286.28 = 43,023.54/x
  3. Step 3: Cross multiply
    77,021.80x = 106,286.28 × 43,023.54
  4. Step 4: Simplify right side
    77,021.80x = 4,572,812,019.03
  5. Step 5: Solve for x
    x = 4,572,812,019.03/77,021.80
  6. Step 6: Final answer
    x = 59,370.36

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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.