Home / 90,629.28-136,004.40-34,521.12

Finding the Fourth Proportional to 90,629.28, 136,004.40 and 34,521.12

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Solution

The fourth proportional to 90,629.28, 136,004.40 and 34,521.12 is: 51,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.28 : 136,004.40 = 34,521.12 : x
  2. Step 2: Convert to fraction form
    90,629.28/136,004.40 = 34,521.12/x
  3. Step 3: Cross multiply
    90,629.28x = 136,004.40 × 34,521.12
  4. Step 4: Simplify right side
    90,629.28x = 4,695,024,212.93
  5. Step 5: Solve for x
    x = 4,695,024,212.93/90,629.28
  6. Step 6: Final answer
    x = 51,804.72

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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.