Home / 45,753.60-68,646.20-19,113.80

Finding the Fourth Proportional to 45,753.60, 68,646.20 and 19,113.80

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Solution

The fourth proportional to 45,753.60, 68,646.20 and 19,113.80 is: 28,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,753.60 : 68,646.20 = 19,113.80 : x
  2. Step 2: Convert to fraction form
    45,753.60/68,646.20 = 19,113.80/x
  3. Step 3: Cross multiply
    45,753.60x = 68,646.20 × 19,113.80
  4. Step 4: Simplify right side
    45,753.60x = 1,312,089,737.56
  5. Step 5: Solve for x
    x = 1,312,089,737.56/45,753.60
  6. Step 6: Final answer
    x = 28,677.30

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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.