Home / 81,556.74-112,549.59-47,564.28

Finding the Fourth Proportional to 81,556.74, 112,549.59 and 47,564.28

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Solution

The fourth proportional to 81,556.74, 112,549.59 and 47,564.28 is: 65,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556.74 : 112,549.59 = 47,564.28 : x
  2. Step 2: Convert to fraction form
    81,556.74/112,549.59 = 47,564.28/x
  3. Step 3: Cross multiply
    81,556.74x = 112,549.59 × 47,564.28
  4. Step 4: Simplify right side
    81,556.74x = 5,353,340,212.65
  5. Step 5: Solve for x
    x = 5,353,340,212.65/81,556.74
  6. Step 6: Final answer
    x = 65,639.46

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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.