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Finding the Fourth Proportional to 82,840.80, 124,277.40 and 35,455.80

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Solution

The fourth proportional to 82,840.80, 124,277.40 and 35,455.80 is: 53,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,840.80 : 124,277.40 = 35,455.80 : x
  2. Step 2: Convert to fraction form
    82,840.80/124,277.40 = 35,455.80/x
  3. Step 3: Cross multiply
    82,840.80x = 124,277.40 × 35,455.80
  4. Step 4: Simplify right side
    82,840.80x = 4,406,354,638.92
  5. Step 5: Solve for x
    x = 4,406,354,638.92/82,840.80
  6. Step 6: Final answer
    x = 53,190.63

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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.