Home / 48,643.13-72,954.07-18,647.21

Finding the Fourth Proportional to 48,643.13, 72,954.07 and 18,647.21

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Solution

The fourth proportional to 48,643.13, 72,954.07 and 18,647.21 is: 27,966.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,643.13 : 72,954.07 = 18,647.21 : x
  2. Step 2: Convert to fraction form
    48,643.13/72,954.07 = 18,647.21/x
  3. Step 3: Cross multiply
    48,643.13x = 72,954.07 × 18,647.21
  4. Step 4: Simplify right side
    48,643.13x = 1,360,389,999.41
  5. Step 5: Solve for x
    x = 1,360,389,999.41/48,643.13
  6. Step 6: Final answer
    x = 27,966.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.