Home / 81,014.59-111,805.53-45,205.36

Finding the Fourth Proportional to 81,014.59, 111,805.53 and 45,205.36

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Solution

The fourth proportional to 81,014.59, 111,805.53 and 45,205.36 is: 62,386.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,014.59 : 111,805.53 = 45,205.36 : x
  2. Step 2: Convert to fraction form
    81,014.59/111,805.53 = 45,205.36/x
  3. Step 3: Cross multiply
    81,014.59x = 111,805.53 × 45,205.36
  4. Step 4: Simplify right side
    81,014.59x = 5,054,209,233.64
  5. Step 5: Solve for x
    x = 5,054,209,233.64/81,014.59
  6. Step 6: Final answer
    x = 62,386.41

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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.