Home / 90,192.42-135,284.58-31,028.40

Finding the Fourth Proportional to 90,192.42, 135,284.58 and 31,028.40

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Solution

The fourth proportional to 90,192.42, 135,284.58 and 31,028.40 is: 46,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,192.42 : 135,284.58 = 31,028.40 : x
  2. Step 2: Convert to fraction form
    90,192.42/135,284.58 = 31,028.40/x
  3. Step 3: Cross multiply
    90,192.42x = 135,284.58 × 31,028.40
  4. Step 4: Simplify right side
    90,192.42x = 4,197,664,062.07
  5. Step 5: Solve for x
    x = 4,197,664,062.07/90,192.42
  6. Step 6: Final answer
    x = 46,541.21

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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.