Home / 42,120.11-58,125.38-22,999.79

Finding the Fourth Proportional to 42,120.11, 58,125.38 and 22,999.79

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Solution

The fourth proportional to 42,120.11, 58,125.38 and 22,999.79 is: 31,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.11 : 58,125.38 = 22,999.79 : x
  2. Step 2: Convert to fraction form
    42,120.11/58,125.38 = 22,999.79/x
  3. Step 3: Cross multiply
    42,120.11x = 58,125.38 × 22,999.79
  4. Step 4: Simplify right side
    42,120.11x = 1,336,871,128.04
  5. Step 5: Solve for x
    x = 1,336,871,128.04/42,120.11
  6. Step 6: Final answer
    x = 31,739.50

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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.