Home / 90,896.71-136,351.29-30,900.77

Finding the Fourth Proportional to 90,896.71, 136,351.29 and 30,900.77

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Solution

The fourth proportional to 90,896.71, 136,351.29 and 30,900.77 is: 46,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,896.71 : 136,351.29 = 30,900.77 : x
  2. Step 2: Convert to fraction form
    90,896.71/136,351.29 = 30,900.77/x
  3. Step 3: Cross multiply
    90,896.71x = 136,351.29 × 30,900.77
  4. Step 4: Simplify right side
    90,896.71x = 4,213,359,851.49
  5. Step 5: Solve for x
    x = 4,213,359,851.49/90,896.71
  6. Step 6: Final answer
    x = 46,353.27

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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.