Home / 91,029.12-136,605.60-55,861.44

Finding the Fourth Proportional to 91,029.12, 136,605.60 and 55,861.44

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Solution

The fourth proportional to 91,029.12, 136,605.60 and 55,861.44 is: 83,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,029.12 : 136,605.60 = 55,861.44 : x
  2. Step 2: Convert to fraction form
    91,029.12/136,605.60 = 55,861.44/x
  3. Step 3: Cross multiply
    91,029.12x = 136,605.60 × 55,861.44
  4. Step 4: Simplify right side
    91,029.12x = 7,630,985,528.06
  5. Step 5: Solve for x
    x = 7,630,985,528.06/91,029.12
  6. Step 6: Final answer
    x = 83,830.16

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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.