Home / 90,866.32-136,260.60-31,684.48

Finding the Fourth Proportional to 90,866.32, 136,260.60 and 31,684.48

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Solution

The fourth proportional to 90,866.32, 136,260.60 and 31,684.48 is: 47,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,866.32 : 136,260.60 = 31,684.48 : x
  2. Step 2: Convert to fraction form
    90,866.32/136,260.60 = 31,684.48/x
  3. Step 3: Cross multiply
    90,866.32x = 136,260.60 × 31,684.48
  4. Step 4: Simplify right side
    90,866.32x = 4,317,346,255.49
  5. Step 5: Solve for x
    x = 4,317,346,255.49/90,866.32
  6. Step 6: Final answer
    x = 47,513.16

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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.