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Finding the Fourth Proportional to 45,328.94, 62,503.49 and 30,991.10

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Solution

The fourth proportional to 45,328.94, 62,503.49 and 30,991.10 is: 42,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,328.94 : 62,503.49 = 30,991.10 : x
  2. Step 2: Convert to fraction form
    45,328.94/62,503.49 = 30,991.10/x
  3. Step 3: Cross multiply
    45,328.94x = 62,503.49 × 30,991.10
  4. Step 4: Simplify right side
    45,328.94x = 1,937,051,908.94
  5. Step 5: Solve for x
    x = 1,937,051,908.94/45,328.94
  6. Step 6: Final answer
    x = 42,733.23

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