Home / 45,185.12-67,763.40-42,236.84

Finding the Fourth Proportional to 45,185.12, 67,763.40 and 42,236.84

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Solution

The fourth proportional to 45,185.12, 67,763.40 and 42,236.84 is: 63,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,185.12 : 67,763.40 = 42,236.84 : x
  2. Step 2: Convert to fraction form
    45,185.12/67,763.40 = 42,236.84/x
  3. Step 3: Cross multiply
    45,185.12x = 67,763.40 × 42,236.84
  4. Step 4: Simplify right side
    45,185.12x = 2,862,111,883.66
  5. Step 5: Solve for x
    x = 2,862,111,883.66/45,185.12
  6. Step 6: Final answer
    x = 63,341.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.