Home / 68,435.28-102,689.08-48,573.20

Finding the Fourth Proportional to 68,435.28, 102,689.08 and 48,573.20

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Solution

The fourth proportional to 68,435.28, 102,689.08 and 48,573.20 is: 72,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,435.28 : 102,689.08 = 48,573.20 : x
  2. Step 2: Convert to fraction form
    68,435.28/102,689.08 = 48,573.20/x
  3. Step 3: Cross multiply
    68,435.28x = 102,689.08 × 48,573.20
  4. Step 4: Simplify right side
    68,435.28x = 4,987,937,220.66
  5. Step 5: Solve for x
    x = 4,987,937,220.66/68,435.28
  6. Step 6: Final answer
    x = 72,885.47

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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.