Home / 80,055.24-120,158.10-40,640.64

Finding the Fourth Proportional to 80,055.24, 120,158.10 and 40,640.64

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Solution

The fourth proportional to 80,055.24, 120,158.10 and 40,640.64 is: 60,999.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,055.24 : 120,158.10 = 40,640.64 : x
  2. Step 2: Convert to fraction form
    80,055.24/120,158.10 = 40,640.64/x
  3. Step 3: Cross multiply
    80,055.24x = 120,158.10 × 40,640.64
  4. Step 4: Simplify right side
    80,055.24x = 4,883,302,085.18
  5. Step 5: Solve for x
    x = 4,883,302,085.18/80,055.24
  6. Step 6: Final answer
    x = 60,999.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.