Home / 90,283.54-135,437.16-31,103.32

Finding the Fourth Proportional to 90,283.54, 135,437.16 and 31,103.32

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Solution

The fourth proportional to 90,283.54, 135,437.16 and 31,103.32 is: 46,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,283.54 : 135,437.16 = 31,103.32 : x
  2. Step 2: Convert to fraction form
    90,283.54/135,437.16 = 31,103.32/x
  3. Step 3: Cross multiply
    90,283.54x = 135,437.16 × 31,103.32
  4. Step 4: Simplify right side
    90,283.54x = 4,212,545,327.37
  5. Step 5: Solve for x
    x = 4,212,545,327.37/90,283.54
  6. Step 6: Final answer
    x = 46,659.06

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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.