Home / 49,364.48-68,135.64-30,490.80

Finding the Fourth Proportional to 49,364.48, 68,135.64 and 30,490.80

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Solution

The fourth proportional to 49,364.48, 68,135.64 and 30,490.80 is: 42,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,364.48 : 68,135.64 = 30,490.80 : x
  2. Step 2: Convert to fraction form
    49,364.48/68,135.64 = 30,490.80/x
  3. Step 3: Cross multiply
    49,364.48x = 68,135.64 × 30,490.80
  4. Step 4: Simplify right side
    49,364.48x = 2,077,510,172.11
  5. Step 5: Solve for x
    x = 2,077,510,172.11/49,364.48
  6. Step 6: Final answer
    x = 42,085.12

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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.