Home / 74,272.11-111,400.27-20,962.77

Finding the Fourth Proportional to 74,272.11, 111,400.27 and 20,962.77

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Solution

The fourth proportional to 74,272.11, 111,400.27 and 20,962.77 is: 31,441.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.11 : 111,400.27 = 20,962.77 : x
  2. Step 2: Convert to fraction form
    74,272.11/111,400.27 = 20,962.77/x
  3. Step 3: Cross multiply
    74,272.11x = 111,400.27 × 20,962.77
  4. Step 4: Simplify right side
    74,272.11x = 2,335,258,133.13
  5. Step 5: Solve for x
    x = 2,335,258,133.13/74,272.11
  6. Step 6: Final answer
    x = 31,441.93

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1.5x scale

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.