Home / 81,500.60-112,507.68-51,330.26

Finding the Fourth Proportional to 81,500.60, 112,507.68 and 51,330.26

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Solution

The fourth proportional to 81,500.60, 112,507.68 and 51,330.26 is: 70,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,500.60 : 112,507.68 = 51,330.26 : x
  2. Step 2: Convert to fraction form
    81,500.60/112,507.68 = 51,330.26/x
  3. Step 3: Cross multiply
    81,500.60x = 112,507.68 × 51,330.26
  4. Step 4: Simplify right side
    81,500.60x = 5,775,048,466.40
  5. Step 5: Solve for x
    x = 5,775,048,466.40/81,500.60
  6. Step 6: Final answer
    x = 70,858.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.