Home / 90,277.60-135,333.47-31,099.20

Finding the Fourth Proportional to 90,277.60, 135,333.47 and 31,099.20

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Solution

The fourth proportional to 90,277.60, 135,333.47 and 31,099.20 is: 46,620.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,277.60 : 135,333.47 = 31,099.20 : x
  2. Step 2: Convert to fraction form
    90,277.60/135,333.47 = 31,099.20/x
  3. Step 3: Cross multiply
    90,277.60x = 135,333.47 × 31,099.20
  4. Step 4: Simplify right side
    90,277.60x = 4,208,763,066.31
  5. Step 5: Solve for x
    x = 4,208,763,066.31/90,277.60
  6. Step 6: Final answer
    x = 46,620.24

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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.