Home / 72,931.38-109,324.40-30,822.06

Finding the Fourth Proportional to 72,931.38, 109,324.40 and 30,822.06

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Solution

The fourth proportional to 72,931.38, 109,324.40 and 30,822.06 is: 46,202.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,931.38 : 109,324.40 = 30,822.06 : x
  2. Step 2: Convert to fraction form
    72,931.38/109,324.40 = 30,822.06/x
  3. Step 3: Cross multiply
    72,931.38x = 109,324.40 × 30,822.06
  4. Step 4: Simplify right side
    72,931.38x = 3,369,603,062.15
  5. Step 5: Solve for x
    x = 3,369,603,062.15/72,931.38
  6. Step 6: Final answer
    x = 46,202.38

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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.