Home / 83,534.96-115,283.72-45,809.21

Finding the Fourth Proportional to 83,534.96, 115,283.72 and 45,809.21

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Solution

The fourth proportional to 83,534.96, 115,283.72 and 45,809.21 is: 63,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,534.96 : 115,283.72 = 45,809.21 : x
  2. Step 2: Convert to fraction form
    83,534.96/115,283.72 = 45,809.21/x
  3. Step 3: Cross multiply
    83,534.96x = 115,283.72 × 45,809.21
  4. Step 4: Simplify right side
    83,534.96x = 5,281,056,139.06
  5. Step 5: Solve for x
    x = 5,281,056,139.06/83,534.96
  6. Step 6: Final answer
    x = 63,219.71

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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.