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Finding the Fourth Proportional to 82,830.80, 124,262.40 and 35,445.80

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Solution

The fourth proportional to 82,830.80, 124,262.40 and 35,445.80 is: 53,175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,830.80 : 124,262.40 = 35,445.80 : x
  2. Step 2: Convert to fraction form
    82,830.80/124,262.40 = 35,445.80/x
  3. Step 3: Cross multiply
    82,830.80x = 124,262.40 × 35,445.80
  4. Step 4: Simplify right side
    82,830.80x = 4,404,580,177.92
  5. Step 5: Solve for x
    x = 4,404,580,177.92/82,830.80
  6. Step 6: Final answer
    x = 53,175.63

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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.