Home / 84,857.21-117,089.93-49,040.30

Finding the Fourth Proportional to 84,857.21, 117,089.93 and 49,040.30

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Solution

The fourth proportional to 84,857.21, 117,089.93 and 49,040.30 is: 67,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,857.21 : 117,089.93 = 49,040.30 : x
  2. Step 2: Convert to fraction form
    84,857.21/117,089.93 = 49,040.30/x
  3. Step 3: Cross multiply
    84,857.21x = 117,089.93 × 49,040.30
  4. Step 4: Simplify right side
    84,857.21x = 5,742,125,294.18
  5. Step 5: Solve for x
    x = 5,742,125,294.18/84,857.21
  6. Step 6: Final answer
    x = 67,668.09

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1.5x scale

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.