Home / 85,407.11-117,862.75-47,166.59

Finding the Fourth Proportional to 85,407.11, 117,862.75 and 47,166.59

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Solution

The fourth proportional to 85,407.11, 117,862.75 and 47,166.59 is: 65,090.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,407.11 : 117,862.75 = 47,166.59 : x
  2. Step 2: Convert to fraction form
    85,407.11/117,862.75 = 47,166.59/x
  3. Step 3: Cross multiply
    85,407.11x = 117,862.75 × 47,166.59
  4. Step 4: Simplify right side
    85,407.11x = 5,559,184,359.14
  5. Step 5: Solve for x
    x = 5,559,184,359.14/85,407.11
  6. Step 6: Final answer
    x = 65,090.42

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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.