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Finding the Fourth Proportional to 72,330.89, 99,750.04 and 49,629.83

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Solution

The fourth proportional to 72,330.89, 99,750.04 and 49,629.83 is: 68,443.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,330.89 : 99,750.04 = 49,629.83 : x
  2. Step 2: Convert to fraction form
    72,330.89/99,750.04 = 49,629.83/x
  3. Step 3: Cross multiply
    72,330.89x = 99,750.04 × 49,629.83
  4. Step 4: Simplify right side
    72,330.89x = 4,950,577,652.99
  5. Step 5: Solve for x
    x = 4,950,577,652.99/72,330.89
  6. Step 6: Final answer
    x = 68,443.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.