Home / 85,431.51-117,895.01-47,193.68

Finding the Fourth Proportional to 85,431.51, 117,895.01 and 47,193.68

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Solution

The fourth proportional to 85,431.51, 117,895.01 and 47,193.68 is: 65,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,431.51 : 117,895.01 = 47,193.68 : x
  2. Step 2: Convert to fraction form
    85,431.51/117,895.01 = 47,193.68/x
  3. Step 3: Cross multiply
    85,431.51x = 117,895.01 × 47,193.68
  4. Step 4: Simplify right side
    85,431.51x = 5,563,899,788.26
  5. Step 5: Solve for x
    x = 5,563,899,788.26/85,431.51
  6. Step 6: Final answer
    x = 65,127.02

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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.