Home / 105,573.41-145,691.37-57,827.56

Finding the Fourth Proportional to 105,573.41, 145,691.37 and 57,827.56

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Solution

The fourth proportional to 105,573.41, 145,691.37 and 57,827.56 is: 79,802.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,573.41 : 145,691.37 = 57,827.56 : x
  2. Step 2: Convert to fraction form
    105,573.41/145,691.37 = 57,827.56/x
  3. Step 3: Cross multiply
    105,573.41x = 145,691.37 × 57,827.56
  4. Step 4: Simplify right side
    105,573.41x = 8,424,976,440.16
  5. Step 5: Solve for x
    x = 8,424,976,440.16/105,573.41
  6. Step 6: Final answer
    x = 79,802.07

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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.