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Finding the Fourth Proportional to 45,398, 62,657.52 and 43,405.40

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Solution

The fourth proportional to 45,398, 62,657.52 and 43,405.40 is: 59,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,398 : 62,657.52 = 43,405.40 : x
  2. Step 2: Convert to fraction form
    45,398/62,657.52 = 43,405.40/x
  3. Step 3: Cross multiply
    45,398x = 62,657.52 × 43,405.40
  4. Step 4: Simplify right side
    45,398x = 2,719,674,718.61
  5. Step 5: Solve for x
    x = 2,719,674,718.61/45,398
  6. Step 6: Final answer
    x = 59,907.37

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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.