Home / 91,029.36-136,605.96-55,861.68

Finding the Fourth Proportional to 91,029.36, 136,605.96 and 55,861.68

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Solution

The fourth proportional to 91,029.36, 136,605.96 and 55,861.68 is: 83,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,029.36 : 136,605.96 = 55,861.68 : x
  2. Step 2: Convert to fraction form
    91,029.36/136,605.96 = 55,861.68/x
  3. Step 3: Cross multiply
    91,029.36x = 136,605.96 × 55,861.68
  4. Step 4: Simplify right side
    91,029.36x = 7,631,038,423.61
  5. Step 5: Solve for x
    x = 7,631,038,423.61/91,029.36
  6. Step 6: Final answer
    x = 83,830.52

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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.