Home / 81,693.03-112,763.96-51,528.63

Finding the Fourth Proportional to 81,693.03, 112,763.96 and 51,528.63

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Solution

The fourth proportional to 81,693.03, 112,763.96 and 51,528.63 is: 71,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,693.03 : 112,763.96 = 51,528.63 : x
  2. Step 2: Convert to fraction form
    81,693.03/112,763.96 = 51,528.63/x
  3. Step 3: Cross multiply
    81,693.03x = 112,763.96 × 51,528.63
  4. Step 4: Simplify right side
    81,693.03x = 5,810,572,372.17
  5. Step 5: Solve for x
    x = 5,810,572,372.17/81,693.03
  6. Step 6: Final answer
    x = 71,126.90

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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.