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Finding the Fourth Proportional to 72,833.79, 109,222.98 and 28,454.76

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Solution

The fourth proportional to 72,833.79, 109,222.98 and 28,454.76 is: 42,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,833.79 : 109,222.98 = 28,454.76 : x
  2. Step 2: Convert to fraction form
    72,833.79/109,222.98 = 28,454.76/x
  3. Step 3: Cross multiply
    72,833.79x = 109,222.98 × 28,454.76
  4. Step 4: Simplify right side
    72,833.79x = 3,107,913,682.38
  5. Step 5: Solve for x
    x = 3,107,913,682.38/72,833.79
  6. Step 6: Final answer
    x = 42,671.32

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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.