Home / 50,648.09-75,931.22-21,088.15

Finding the Fourth Proportional to 50,648.09, 75,931.22 and 21,088.15

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Solution

The fourth proportional to 50,648.09, 75,931.22 and 21,088.15 is: 31,615.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,648.09 : 75,931.22 = 21,088.15 : x
  2. Step 2: Convert to fraction form
    50,648.09/75,931.22 = 21,088.15/x
  3. Step 3: Cross multiply
    50,648.09x = 75,931.22 × 21,088.15
  4. Step 4: Simplify right side
    50,648.09x = 1,601,248,819.94
  5. Step 5: Solve for x
    x = 1,601,248,819.94/50,648.09
  6. Step 6: Final answer
    x = 31,615.19

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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.