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Finding the Fourth Proportional to 45,643, 62,988.74 and 25,500.76

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Solution

The fourth proportional to 45,643, 62,988.74 and 25,500.76 is: 35,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,643 : 62,988.74 = 25,500.76 : x
  2. Step 2: Convert to fraction form
    45,643/62,988.74 = 25,500.76/x
  3. Step 3: Cross multiply
    45,643x = 62,988.74 × 25,500.76
  4. Step 4: Simplify right side
    45,643x = 1,606,260,741.44
  5. Step 5: Solve for x
    x = 1,606,260,741.44/45,643
  6. Step 6: Final answer
    x = 35,191.83

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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.