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Finding the Fourth Proportional to 81,204.58, 112,064.80 and 45,396.10

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Solution

The fourth proportional to 81,204.58, 112,064.80 and 45,396.10 is: 62,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,204.58 : 112,064.80 = 45,396.10 : x
  2. Step 2: Convert to fraction form
    81,204.58/112,064.80 = 45,396.10/x
  3. Step 3: Cross multiply
    81,204.58x = 112,064.80 × 45,396.10
  4. Step 4: Simplify right side
    81,204.58x = 5,087,304,867.28
  5. Step 5: Solve for x
    x = 5,087,304,867.28/81,204.58
  6. Step 6: Final answer
    x = 62,648.00

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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.