Home / 79,370.75-109,548.55-47,558.10

Finding the Fourth Proportional to 79,370.75, 109,548.55 and 47,558.10

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Solution

The fourth proportional to 79,370.75, 109,548.55 and 47,558.10 is: 65,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,370.75 : 109,548.55 = 47,558.10 : x
  2. Step 2: Convert to fraction form
    79,370.75/109,548.55 = 47,558.10/x
  3. Step 3: Cross multiply
    79,370.75x = 109,548.55 × 47,558.10
  4. Step 4: Simplify right side
    79,370.75x = 5,209,921,366.01
  5. Step 5: Solve for x
    x = 5,209,921,366.01/79,370.75
  6. Step 6: Final answer
    x = 65,640.32

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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.