Home / 88,015.08-121,460.77-47,728.72

Finding the Fourth Proportional to 88,015.08, 121,460.77 and 47,728.72

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Solution

The fourth proportional to 88,015.08, 121,460.77 and 47,728.72 is: 65,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,015.08 : 121,460.77 = 47,728.72 : x
  2. Step 2: Convert to fraction form
    88,015.08/121,460.77 = 47,728.72/x
  3. Step 3: Cross multiply
    88,015.08x = 121,460.77 × 47,728.72
  4. Step 4: Simplify right side
    88,015.08x = 5,797,167,082.31
  5. Step 5: Solve for x
    x = 5,797,167,082.31/88,015.08
  6. Step 6: Final answer
    x = 65,865.61

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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.