Home / 81,360.57-112,276.38-45,058.56

Finding the Fourth Proportional to 81,360.57, 112,276.38 and 45,058.56

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Solution

The fourth proportional to 81,360.57, 112,276.38 and 45,058.56 is: 62,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,360.57 : 112,276.38 = 45,058.56 : x
  2. Step 2: Convert to fraction form
    81,360.57/112,276.38 = 45,058.56/x
  3. Step 3: Cross multiply
    81,360.57x = 112,276.38 × 45,058.56
  4. Step 4: Simplify right side
    81,360.57x = 5,059,012,004.81
  5. Step 5: Solve for x
    x = 5,059,012,004.81/81,360.57
  6. Step 6: Final answer
    x = 62,180.14

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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.