Home / 48,419.40-72,633.29-13,359.06

Finding the Fourth Proportional to 48,419.40, 72,633.29 and 13,359.06

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Solution

The fourth proportional to 48,419.40, 72,633.29 and 13,359.06 is: 20,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,419.40 : 72,633.29 = 13,359.06 : x
  2. Step 2: Convert to fraction form
    48,419.40/72,633.29 = 13,359.06/x
  3. Step 3: Cross multiply
    48,419.40x = 72,633.29 × 13,359.06
  4. Step 4: Simplify right side
    48,419.40x = 970,312,479.11
  5. Step 5: Solve for x
    x = 970,312,479.11/48,419.40
  6. Step 6: Final answer
    x = 20,039.75

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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.