Home / 82,922.40-124,383.60-57,990.60

Finding the Fourth Proportional to 82,922.40, 124,383.60 and 57,990.60

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Solution

The fourth proportional to 82,922.40, 124,383.60 and 57,990.60 is: 86,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,922.40 : 124,383.60 = 57,990.60 : x
  2. Step 2: Convert to fraction form
    82,922.40/124,383.60 = 57,990.60/x
  3. Step 3: Cross multiply
    82,922.40x = 124,383.60 × 57,990.60
  4. Step 4: Simplify right side
    82,922.40x = 7,213,079,594.16
  5. Step 5: Solve for x
    x = 7,213,079,594.16/82,922.40
  6. Step 6: Final answer
    x = 86,985.90

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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.