Home / 90,289.15-135,455.33-37,669.39

Finding the Fourth Proportional to 90,289.15, 135,455.33 and 37,669.39

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Solution

The fourth proportional to 90,289.15, 135,455.33 and 37,669.39 is: 56,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,289.15 : 135,455.33 = 37,669.39 : x
  2. Step 2: Convert to fraction form
    90,289.15/135,455.33 = 37,669.39/x
  3. Step 3: Cross multiply
    90,289.15x = 135,455.33 × 37,669.39
  4. Step 4: Simplify right side
    90,289.15x = 5,102,519,653.35
  5. Step 5: Solve for x
    x = 5,102,519,653.35/90,289.15
  6. Step 6: Final answer
    x = 56,513.10

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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.