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Finding the Fourth Proportional to 73,999.57, 102,129.40 and 41,740.81

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Solution

The fourth proportional to 73,999.57, 102,129.40 and 41,740.81 is: 57,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,999.57 : 102,129.40 = 41,740.81 : x
  2. Step 2: Convert to fraction form
    73,999.57/102,129.40 = 41,740.81/x
  3. Step 3: Cross multiply
    73,999.57x = 102,129.40 × 41,740.81
  4. Step 4: Simplify right side
    73,999.57x = 4,262,963,677.67
  5. Step 5: Solve for x
    x = 4,262,963,677.67/73,999.57
  6. Step 6: Final answer
    x = 57,607.95

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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.