Home / 81,271.36-112,163.93-47,281.29

Finding the Fourth Proportional to 81,271.36, 112,163.93 and 47,281.29

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Solution

The fourth proportional to 81,271.36, 112,163.93 and 47,281.29 is: 65,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,271.36 : 112,163.93 = 47,281.29 : x
  2. Step 2: Convert to fraction form
    81,271.36/112,163.93 = 47,281.29/x
  3. Step 3: Cross multiply
    81,271.36x = 112,163.93 × 47,281.29
  4. Step 4: Simplify right side
    81,271.36x = 5,303,255,301.87
  5. Step 5: Solve for x
    x = 5,303,255,301.87/81,271.36
  6. Step 6: Final answer
    x = 65,253.68

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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.