Home / 96,990.27-145,485.42-30,435.72

Finding the Fourth Proportional to 96,990.27, 145,485.42 and 30,435.72

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Solution

The fourth proportional to 96,990.27, 145,485.42 and 30,435.72 is: 45,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,990.27 : 145,485.42 = 30,435.72 : x
  2. Step 2: Convert to fraction form
    96,990.27/145,485.42 = 30,435.72/x
  3. Step 3: Cross multiply
    96,990.27x = 145,485.42 × 30,435.72
  4. Step 4: Simplify right side
    96,990.27x = 4,427,953,507.20
  5. Step 5: Solve for x
    x = 4,427,953,507.20/96,990.27
  6. Step 6: Final answer
    x = 45,653.58

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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.