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Finding the Fourth Proportional to 61,861.48, 85,363.63 and 36,368.69

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Solution

The fourth proportional to 61,861.48, 85,363.63 and 36,368.69 is: 50,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,861.48 : 85,363.63 = 36,368.69 : x
  2. Step 2: Convert to fraction form
    61,861.48/85,363.63 = 36,368.69/x
  3. Step 3: Cross multiply
    61,861.48x = 85,363.63 × 36,368.69
  4. Step 4: Simplify right side
    61,861.48x = 3,104,562,879.00
  5. Step 5: Solve for x
    x = 3,104,562,879.00/61,861.48
  6. Step 6: Final answer
    x = 50,185.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.