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Finding the Fourth Proportional to 43,503.52, 59,950.78 and 30,906.40

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Solution

The fourth proportional to 43,503.52, 59,950.78 and 30,906.40 is: 42,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,503.52 : 59,950.78 = 30,906.40 : x
  2. Step 2: Convert to fraction form
    43,503.52/59,950.78 = 30,906.40/x
  3. Step 3: Cross multiply
    43,503.52x = 59,950.78 × 30,906.40
  4. Step 4: Simplify right side
    43,503.52x = 1,852,862,786.99
  5. Step 5: Solve for x
    x = 1,852,862,786.99/43,503.52
  6. Step 6: Final answer
    x = 42,591.10

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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.