Home / 68,973.15-103,405.05-37,808.40

Finding the Fourth Proportional to 68,973.15, 103,405.05 and 37,808.40

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Solution

The fourth proportional to 68,973.15, 103,405.05 and 37,808.40 is: 56,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,973.15 : 103,405.05 = 37,808.40 : x
  2. Step 2: Convert to fraction form
    68,973.15/103,405.05 = 37,808.40/x
  3. Step 3: Cross multiply
    68,973.15x = 103,405.05 × 37,808.40
  4. Step 4: Simplify right side
    68,973.15x = 3,909,579,492.42
  5. Step 5: Solve for x
    x = 3,909,579,492.42/68,973.15
  6. Step 6: Final answer
    x = 56,682.63

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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.