Home / 85,465.10-117,941.72-47,739.36

Finding the Fourth Proportional to 85,465.10, 117,941.72 and 47,739.36

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Solution

The fourth proportional to 85,465.10, 117,941.72 and 47,739.36 is: 65,880.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,465.10 : 117,941.72 = 47,739.36 : x
  2. Step 2: Convert to fraction form
    85,465.10/117,941.72 = 47,739.36/x
  3. Step 3: Cross multiply
    85,465.10x = 117,941.72 × 47,739.36
  4. Step 4: Simplify right side
    85,465.10x = 5,630,462,230.10
  5. Step 5: Solve for x
    x = 5,630,462,230.10/85,465.10
  6. Step 6: Final answer
    x = 65,880.25

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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.