Home / 81,340.93-112,245.21-45,530.63

Finding the Fourth Proportional to 81,340.93, 112,245.21 and 45,530.63

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Solution

The fourth proportional to 81,340.93, 112,245.21 and 45,530.63 is: 62,829.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,340.93 : 112,245.21 = 45,530.63 : x
  2. Step 2: Convert to fraction form
    81,340.93/112,245.21 = 45,530.63/x
  3. Step 3: Cross multiply
    81,340.93x = 112,245.21 × 45,530.63
  4. Step 4: Simplify right side
    81,340.93x = 5,110,595,125.78
  5. Step 5: Solve for x
    x = 5,110,595,125.78/81,340.93
  6. Step 6: Final answer
    x = 62,829.32

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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.