Home / 81,225.49-112,090.81-45,415.50

Finding the Fourth Proportional to 81,225.49, 112,090.81 and 45,415.50

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Solution

The fourth proportional to 81,225.49, 112,090.81 and 45,415.50 is: 62,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,225.49 : 112,090.81 = 45,415.50 : x
  2. Step 2: Convert to fraction form
    81,225.49/112,090.81 = 45,415.50/x
  3. Step 3: Cross multiply
    81,225.49x = 112,090.81 × 45,415.50
  4. Step 4: Simplify right side
    81,225.49x = 5,090,660,533.65
  5. Step 5: Solve for x
    x = 5,090,660,533.65/81,225.49
  6. Step 6: Final answer
    x = 62,673.19

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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.