Home / 81,399.69-112,338.60-45,597.09

Finding the Fourth Proportional to 81,399.69, 112,338.60 and 45,597.09

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Solution

The fourth proportional to 81,399.69, 112,338.60 and 45,597.09 is: 62,927.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,399.69 : 112,338.60 = 45,597.09 : x
  2. Step 2: Convert to fraction form
    81,399.69/112,338.60 = 45,597.09/x
  3. Step 3: Cross multiply
    81,399.69x = 112,338.60 × 45,597.09
  4. Step 4: Simplify right side
    81,399.69x = 5,122,313,254.67
  5. Step 5: Solve for x
    x = 5,122,313,254.67/81,399.69
  6. Step 6: Final answer
    x = 62,927.92

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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.