Home / 81,347.07-112,261.31-45,536.87

Finding the Fourth Proportional to 81,347.07, 112,261.31 and 45,536.87

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Solution

The fourth proportional to 81,347.07, 112,261.31 and 45,536.87 is: 62,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,347.07 : 112,261.31 = 45,536.87 : x
  2. Step 2: Convert to fraction form
    81,347.07/112,261.31 = 45,536.87/x
  3. Step 3: Cross multiply
    81,347.07x = 112,261.31 × 45,536.87
  4. Step 4: Simplify right side
    81,347.07x = 5,112,028,679.50
  5. Step 5: Solve for x
    x = 5,112,028,679.50/81,347.07
  6. Step 6: Final answer
    x = 62,842.20

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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.