Home / 51,581.60-77,380.40-21,999.52

Finding the Fourth Proportional to 51,581.60, 77,380.40 and 21,999.52

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Solution

The fourth proportional to 51,581.60, 77,380.40 and 21,999.52 is: 33,002.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,581.60 : 77,380.40 = 21,999.52 : x
  2. Step 2: Convert to fraction form
    51,581.60/77,380.40 = 21,999.52/x
  3. Step 3: Cross multiply
    51,581.60x = 77,380.40 × 21,999.52
  4. Step 4: Simplify right side
    51,581.60x = 1,702,331,657.41
  5. Step 5: Solve for x
    x = 1,702,331,657.41/51,581.60
  6. Step 6: Final answer
    x = 33,002.69

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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.