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Finding the Fourth Proportional to 82,860.90, 114,350.48 and 45,137.58

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Solution

The fourth proportional to 82,860.90, 114,350.48 and 45,137.58 is: 62,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,860.90 : 114,350.48 = 45,137.58 : x
  2. Step 2: Convert to fraction form
    82,860.90/114,350.48 = 45,137.58/x
  3. Step 3: Cross multiply
    82,860.90x = 114,350.48 × 45,137.58
  4. Step 4: Simplify right side
    82,860.90x = 5,161,503,939.04
  5. Step 5: Solve for x
    x = 5,161,503,939.04/82,860.90
  6. Step 6: Final answer
    x = 62,291.19

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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.