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Finding the Fourth Proportional to 58,246.40, 87,350.40 and 21,305.60

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Solution

The fourth proportional to 58,246.40, 87,350.40 and 21,305.60 is: 31,951.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,246.40 : 87,350.40 = 21,305.60 : x
  2. Step 2: Convert to fraction form
    58,246.40/87,350.40 = 21,305.60/x
  3. Step 3: Cross multiply
    58,246.40x = 87,350.40 × 21,305.60
  4. Step 4: Simplify right side
    58,246.40x = 1,861,052,682.24
  5. Step 5: Solve for x
    x = 1,861,052,682.24/58,246.40
  6. Step 6: Final answer
    x = 31,951.38

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1.5x scale

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.