Home / 78,626.86-108,513.74-48,406.16

Finding the Fourth Proportional to 78,626.86, 108,513.74 and 48,406.16

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Solution

The fourth proportional to 78,626.86, 108,513.74 and 48,406.16 is: 66,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,626.86 : 108,513.74 = 48,406.16 : x
  2. Step 2: Convert to fraction form
    78,626.86/108,513.74 = 48,406.16/x
  3. Step 3: Cross multiply
    78,626.86x = 108,513.74 × 48,406.16
  4. Step 4: Simplify right side
    78,626.86x = 5,252,733,460.64
  5. Step 5: Solve for x
    x = 5,252,733,460.64/78,626.86
  6. Step 6: Final answer
    x = 66,805.84

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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.