Home / 81,537.88-112,522.47-47,569.72

Finding the Fourth Proportional to 81,537.88, 112,522.47 and 47,569.72

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Solution

The fourth proportional to 81,537.88, 112,522.47 and 47,569.72 is: 65,646.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,537.88 : 112,522.47 = 47,569.72 : x
  2. Step 2: Convert to fraction form
    81,537.88/112,522.47 = 47,569.72/x
  3. Step 3: Cross multiply
    81,537.88x = 112,522.47 × 47,569.72
  4. Step 4: Simplify right side
    81,537.88x = 5,352,661,829.00
  5. Step 5: Solve for x
    x = 5,352,661,829.00/81,537.88
  6. Step 6: Final answer
    x = 65,646.32

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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.