Home / 45,969.21-68,957.77-12,689.28

Finding the Fourth Proportional to 45,969.21, 68,957.77 and 12,689.28

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Solution

The fourth proportional to 45,969.21, 68,957.77 and 12,689.28 is: 19,035.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,969.21 : 68,957.77 = 12,689.28 : x
  2. Step 2: Convert to fraction form
    45,969.21/68,957.77 = 12,689.28/x
  3. Step 3: Cross multiply
    45,969.21x = 68,957.77 × 12,689.28
  4. Step 4: Simplify right side
    45,969.21x = 875,024,451.71
  5. Step 5: Solve for x
    x = 875,024,451.71/45,969.21
  6. Step 6: Final answer
    x = 19,035.01

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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.