Home / 42,156.09-58,201.21-40,133.03

Finding the Fourth Proportional to 42,156.09, 58,201.21 and 40,133.03

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Solution

The fourth proportional to 42,156.09, 58,201.21 and 40,133.03 is: 55,408.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,156.09 : 58,201.21 = 40,133.03 : x
  2. Step 2: Convert to fraction form
    42,156.09/58,201.21 = 40,133.03/x
  3. Step 3: Cross multiply
    42,156.09x = 58,201.21 × 40,133.03
  4. Step 4: Simplify right side
    42,156.09x = 2,335,790,465.46
  5. Step 5: Solve for x
    x = 2,335,790,465.46/42,156.09
  6. Step 6: Final answer
    x = 55,408.14

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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.