Home / 85,922.77-128,853.40-29,747.80

Finding the Fourth Proportional to 85,922.77, 128,853.40 and 29,747.80

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Solution

The fourth proportional to 85,922.77, 128,853.40 and 29,747.80 is: 44,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,922.77 : 128,853.40 = 29,747.80 : x
  2. Step 2: Convert to fraction form
    85,922.77/128,853.40 = 29,747.80/x
  3. Step 3: Cross multiply
    85,922.77x = 128,853.40 × 29,747.80
  4. Step 4: Simplify right side
    85,922.77x = 3,833,105,172.52
  5. Step 5: Solve for x
    x = 3,833,105,172.52/85,922.77
  6. Step 6: Final answer
    x = 44,611.05

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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.