Home / 81,289.51-112,179.65-45,480.22

Finding the Fourth Proportional to 81,289.51, 112,179.65 and 45,480.22

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Solution

The fourth proportional to 81,289.51, 112,179.65 and 45,480.22 is: 62,762.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,289.51 : 112,179.65 = 45,480.22 : x
  2. Step 2: Convert to fraction form
    81,289.51/112,179.65 = 45,480.22/x
  3. Step 3: Cross multiply
    81,289.51x = 112,179.65 × 45,480.22
  4. Step 4: Simplify right side
    81,289.51x = 5,101,954,653.67
  5. Step 5: Solve for x
    x = 5,101,954,653.67/81,289.51
  6. Step 6: Final answer
    x = 62,762.77

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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.