Home / 82,899.60-124,349.40-51,406.80

Finding the Fourth Proportional to 82,899.60, 124,349.40 and 51,406.80

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Solution

The fourth proportional to 82,899.60, 124,349.40 and 51,406.80 is: 77,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,899.60 : 124,349.40 = 51,406.80 : x
  2. Step 2: Convert to fraction form
    82,899.60/124,349.40 = 51,406.80/x
  3. Step 3: Cross multiply
    82,899.60x = 124,349.40 × 51,406.80
  4. Step 4: Simplify right side
    82,899.60x = 6,392,404,735.92
  5. Step 5: Solve for x
    x = 6,392,404,735.92/82,899.60
  6. Step 6: Final answer
    x = 77,110.20

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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.