Home / 60,638.10-90,940.95-18,518.10

Finding the Fourth Proportional to 60,638.10, 90,940.95 and 18,518.10

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Solution

The fourth proportional to 60,638.10, 90,940.95 and 18,518.10 is: 27,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,638.10 : 90,940.95 = 18,518.10 : x
  2. Step 2: Convert to fraction form
    60,638.10/90,940.95 = 18,518.10/x
  3. Step 3: Cross multiply
    60,638.10x = 90,940.95 × 18,518.10
  4. Step 4: Simplify right side
    60,638.10x = 1,684,053,606.20
  5. Step 5: Solve for x
    x = 1,684,053,606.20/60,638.10
  6. Step 6: Final answer
    x = 27,772.20

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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.