Home / 88,167.08-121,670.19-47,880.51

Finding the Fourth Proportional to 88,167.08, 121,670.19 and 47,880.51

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Solution

The fourth proportional to 88,167.08, 121,670.19 and 47,880.51 is: 66,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,167.08 : 121,670.19 = 47,880.51 : x
  2. Step 2: Convert to fraction form
    88,167.08/121,670.19 = 47,880.51/x
  3. Step 3: Cross multiply
    88,167.08x = 121,670.19 × 47,880.51
  4. Step 4: Simplify right side
    88,167.08x = 5,825,630,749.00
  5. Step 5: Solve for x
    x = 5,825,630,749.00/88,167.08
  6. Step 6: Final answer
    x = 66,074.90

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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.