Home / 81,429.06-112,378.68-45,627.06

Finding the Fourth Proportional to 81,429.06, 112,378.68 and 45,627.06

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Solution

The fourth proportional to 81,429.06, 112,378.68 and 45,627.06 is: 62,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,429.06 : 112,378.68 = 45,627.06 : x
  2. Step 2: Convert to fraction form
    81,429.06/112,378.68 = 45,627.06/x
  3. Step 3: Cross multiply
    81,429.06x = 112,378.68 × 45,627.06
  4. Step 4: Simplify right side
    81,429.06x = 5,127,508,775.08
  5. Step 5: Solve for x
    x = 5,127,508,775.08/81,429.06
  6. Step 6: Final answer
    x = 62,969.03

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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.