Home / 90,817.98-136,227.74-31,653.55

Finding the Fourth Proportional to 90,817.98, 136,227.74 and 31,653.55

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Solution

The fourth proportional to 90,817.98, 136,227.74 and 31,653.55 is: 47,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,817.98 : 136,227.74 = 31,653.55 : x
  2. Step 2: Convert to fraction form
    90,817.98/136,227.74 = 31,653.55/x
  3. Step 3: Cross multiply
    90,817.98x = 136,227.74 × 31,653.55
  4. Step 4: Simplify right side
    90,817.98x = 4,312,091,579.48
  5. Step 5: Solve for x
    x = 4,312,091,579.48/90,817.98
  6. Step 6: Final answer
    x = 47,480.59

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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.