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Finding the Fourth Proportional to 72,631.50, 100,236.95 and 44,342.66

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Solution

The fourth proportional to 72,631.50, 100,236.95 and 44,342.66 is: 61,196.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,631.50 : 100,236.95 = 44,342.66 : x
  2. Step 2: Convert to fraction form
    72,631.50/100,236.95 = 44,342.66/x
  3. Step 3: Cross multiply
    72,631.50x = 100,236.95 × 44,342.66
  4. Step 4: Simplify right side
    72,631.50x = 4,444,772,270.39
  5. Step 5: Solve for x
    x = 4,444,772,270.39/72,631.50
  6. Step 6: Final answer
    x = 61,196.21

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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.