Home / 91,790.48-137,692.56-47,389.52

Finding the Fourth Proportional to 91,790.48, 137,692.56 and 47,389.52

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Solution

The fourth proportional to 91,790.48, 137,692.56 and 47,389.52 is: 71,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,790.48 : 137,692.56 = 47,389.52 : x
  2. Step 2: Convert to fraction form
    91,790.48/137,692.56 = 47,389.52/x
  3. Step 3: Cross multiply
    91,790.48x = 137,692.56 × 47,389.52
  4. Step 4: Simplify right side
    91,790.48x = 6,525,184,325.97
  5. Step 5: Solve for x
    x = 6,525,184,325.97/91,790.48
  6. Step 6: Final answer
    x = 71,087.81

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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.