Home / 81,291.07-112,186.03-45,478.94

Finding the Fourth Proportional to 81,291.07, 112,186.03 and 45,478.94

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Solution

The fourth proportional to 81,291.07, 112,186.03 and 45,478.94 is: 62,763.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,291.07 : 112,186.03 = 45,478.94 : x
  2. Step 2: Convert to fraction form
    81,291.07/112,186.03 = 45,478.94/x
  3. Step 3: Cross multiply
    81,291.07x = 112,186.03 × 45,478.94
  4. Step 4: Simplify right side
    81,291.07x = 5,102,101,727.21
  5. Step 5: Solve for x
    x = 5,102,101,727.21/81,291.07
  6. Step 6: Final answer
    x = 62,763.37

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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.