Home / 49,405.59-74,085.96-21,312.36

Finding the Fourth Proportional to 49,405.59, 74,085.96 and 21,312.36

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Solution

The fourth proportional to 49,405.59, 74,085.96 and 21,312.36 is: 31,958.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,405.59 : 74,085.96 = 21,312.36 : x
  2. Step 2: Convert to fraction form
    49,405.59/74,085.96 = 21,312.36/x
  3. Step 3: Cross multiply
    49,405.59x = 74,085.96 × 21,312.36
  4. Step 4: Simplify right side
    49,405.59x = 1,578,946,650.47
  5. Step 5: Solve for x
    x = 1,578,946,650.47/49,405.59
  6. Step 6: Final answer
    x = 31,958.87

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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.