Home / 90,246.96-135,315.36-31,066.20

Finding the Fourth Proportional to 90,246.96, 135,315.36 and 31,066.20

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Solution

The fourth proportional to 90,246.96, 135,315.36 and 31,066.20 is: 46,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,246.96 : 135,315.36 = 31,066.20 : x
  2. Step 2: Convert to fraction form
    90,246.96/135,315.36 = 31,066.20/x
  3. Step 3: Cross multiply
    90,246.96x = 135,315.36 × 31,066.20
  4. Step 4: Simplify right side
    90,246.96x = 4,203,734,036.83
  5. Step 5: Solve for x
    x = 4,203,734,036.83/90,246.96
  6. Step 6: Final answer
    x = 46,580.34

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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.