Home / 83,538.18-115,283.25-45,813.06

Finding the Fourth Proportional to 83,538.18, 115,283.25 and 45,813.06

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Solution

The fourth proportional to 83,538.18, 115,283.25 and 45,813.06 is: 63,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,538.18 : 115,283.25 = 45,813.06 : x
  2. Step 2: Convert to fraction form
    83,538.18/115,283.25 = 45,813.06/x
  3. Step 3: Cross multiply
    83,538.18x = 115,283.25 × 45,813.06
  4. Step 4: Simplify right side
    83,538.18x = 5,281,478,449.25
  5. Step 5: Solve for x
    x = 5,281,478,449.25/83,538.18
  6. Step 6: Final answer
    x = 63,222.33

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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.