Home / 74,259.32-111,395.52-20,951.76

Finding the Fourth Proportional to 74,259.32, 111,395.52 and 20,951.76

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Solution

The fourth proportional to 74,259.32, 111,395.52 and 20,951.76 is: 31,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,259.32 : 111,395.52 = 20,951.76 : x
  2. Step 2: Convert to fraction form
    74,259.32/111,395.52 = 20,951.76/x
  3. Step 3: Cross multiply
    74,259.32x = 111,395.52 × 20,951.76
  4. Step 4: Simplify right side
    74,259.32x = 2,333,932,417.93
  5. Step 5: Solve for x
    x = 2,333,932,417.93/74,259.32
  6. Step 6: Final answer
    x = 31,429.49

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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.