Home / 81,409.26-112,348.23-47,412.27

Finding the Fourth Proportional to 81,409.26, 112,348.23 and 47,412.27

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Solution

The fourth proportional to 81,409.26, 112,348.23 and 47,412.27 is: 65,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,409.26 : 112,348.23 = 47,412.27 : x
  2. Step 2: Convert to fraction form
    81,409.26/112,348.23 = 47,412.27/x
  3. Step 3: Cross multiply
    81,409.26x = 112,348.23 × 47,412.27
  4. Step 4: Simplify right side
    81,409.26x = 5,326,684,614.78
  5. Step 5: Solve for x
    x = 5,326,684,614.78/81,409.26
  6. Step 6: Final answer
    x = 65,430.94

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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.