Home / 72,733.63-109,088.07-20,130.79

Finding the Fourth Proportional to 72,733.63, 109,088.07 and 20,130.79

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Solution

The fourth proportional to 72,733.63, 109,088.07 and 20,130.79 is: 30,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,733.63 : 109,088.07 = 20,130.79 : x
  2. Step 2: Convert to fraction form
    72,733.63/109,088.07 = 20,130.79/x
  3. Step 3: Cross multiply
    72,733.63x = 109,088.07 × 20,130.79
  4. Step 4: Simplify right side
    72,733.63x = 2,196,029,028.68
  5. Step 5: Solve for x
    x = 2,196,029,028.68/72,733.63
  6. Step 6: Final answer
    x = 30,192.76

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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.