Home / 60,157.15-90,246.76-20,172.11

Finding the Fourth Proportional to 60,157.15, 90,246.76 and 20,172.11

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Solution

The fourth proportional to 60,157.15, 90,246.76 and 20,172.11 is: 30,261.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,157.15 : 90,246.76 = 20,172.11 : x
  2. Step 2: Convert to fraction form
    60,157.15/90,246.76 = 20,172.11/x
  3. Step 3: Cross multiply
    60,157.15x = 90,246.76 × 20,172.11
  4. Step 4: Simplify right side
    60,157.15x = 1,820,467,068.20
  5. Step 5: Solve for x
    x = 1,820,467,068.20/60,157.15
  6. Step 6: Final answer
    x = 30,261.86

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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.