Home / 72,520.18-108,790.65-32,038.78

Finding the Fourth Proportional to 72,520.18, 108,790.65 and 32,038.78

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Solution

The fourth proportional to 72,520.18, 108,790.65 and 32,038.78 is: 48,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,520.18 : 108,790.65 = 32,038.78 : x
  2. Step 2: Convert to fraction form
    72,520.18/108,790.65 = 32,038.78/x
  3. Step 3: Cross multiply
    72,520.18x = 108,790.65 × 32,038.78
  4. Step 4: Simplify right side
    72,520.18x = 3,485,519,701.41
  5. Step 5: Solve for x
    x = 3,485,519,701.41/72,520.18
  6. Step 6: Final answer
    x = 48,062.76

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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.