Home / 86,128.34-118,834.65-50,297.99

Finding the Fourth Proportional to 86,128.34, 118,834.65 and 50,297.99

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Solution

The fourth proportional to 86,128.34, 118,834.65 and 50,297.99 is: 69,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,128.34 : 118,834.65 = 50,297.99 : x
  2. Step 2: Convert to fraction form
    86,128.34/118,834.65 = 50,297.99/x
  3. Step 3: Cross multiply
    86,128.34x = 118,834.65 × 50,297.99
  4. Step 4: Simplify right side
    86,128.34x = 5,977,143,443.18
  5. Step 5: Solve for x
    x = 5,977,143,443.18/86,128.34
  6. Step 6: Final answer
    x = 69,398.11

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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.