Home / 91,186.34-136,783.43-28,008.98

Finding the Fourth Proportional to 91,186.34, 136,783.43 and 28,008.98

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Solution

The fourth proportional to 91,186.34, 136,783.43 and 28,008.98 is: 42,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,186.34 : 136,783.43 = 28,008.98 : x
  2. Step 2: Convert to fraction form
    91,186.34/136,783.43 = 28,008.98/x
  3. Step 3: Cross multiply
    91,186.34x = 136,783.43 × 28,008.98
  4. Step 4: Simplify right side
    91,186.34x = 3,831,163,531.24
  5. Step 5: Solve for x
    x = 3,831,163,531.24/91,186.34
  6. Step 6: Final answer
    x = 42,014.67

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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.