Home / 81,485.19-112,447.58-45,186.46

Finding the Fourth Proportional to 81,485.19, 112,447.58 and 45,186.46

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Solution

The fourth proportional to 81,485.19, 112,447.58 and 45,186.46 is: 62,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,485.19 : 112,447.58 = 45,186.46 : x
  2. Step 2: Convert to fraction form
    81,485.19/112,447.58 = 45,186.46/x
  3. Step 3: Cross multiply
    81,485.19x = 112,447.58 × 45,186.46
  4. Step 4: Simplify right side
    81,485.19x = 5,081,107,568.72
  5. Step 5: Solve for x
    x = 5,081,107,568.72/81,485.19
  6. Step 6: Final answer
    x = 62,356.21

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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.