Home / 45,411.10-68,116.65-12,136.30

Finding the Fourth Proportional to 45,411.10, 68,116.65 and 12,136.30

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Solution

The fourth proportional to 45,411.10, 68,116.65 and 12,136.30 is: 18,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,411.10 : 68,116.65 = 12,136.30 : x
  2. Step 2: Convert to fraction form
    45,411.10/68,116.65 = 12,136.30/x
  3. Step 3: Cross multiply
    45,411.10x = 68,116.65 × 12,136.30
  4. Step 4: Simplify right side
    45,411.10x = 826,684,099.40
  5. Step 5: Solve for x
    x = 826,684,099.40/45,411.10
  6. Step 6: Final answer
    x = 18,204.45

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1.5x scale

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.