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Finding the Fourth Proportional to 84,610.56, 116,451.84 and 72,538.32

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Solution

The fourth proportional to 84,610.56, 116,451.84 and 72,538.32 is: 99,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,610.56 : 116,451.84 = 72,538.32 : x
  2. Step 2: Convert to fraction form
    84,610.56/116,451.84 = 72,538.32/x
  3. Step 3: Cross multiply
    84,610.56x = 116,451.84 × 72,538.32
  4. Step 4: Simplify right side
    84,610.56x = 8,447,220,834.51
  5. Step 5: Solve for x
    x = 8,447,220,834.51/84,610.56
  6. Step 6: Final answer
    x = 99,836.48

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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.