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Finding the Fourth Proportional to 56,575.89, 84,873.02 and 19,138.24

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Solution

The fourth proportional to 56,575.89, 84,873.02 and 19,138.24 is: 28,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,575.89 : 84,873.02 = 19,138.24 : x
  2. Step 2: Convert to fraction form
    56,575.89/84,873.02 = 19,138.24/x
  3. Step 3: Cross multiply
    56,575.89x = 84,873.02 × 19,138.24
  4. Step 4: Simplify right side
    56,575.89x = 1,624,319,918.41
  5. Step 5: Solve for x
    x = 1,624,319,918.41/56,575.89
  6. Step 6: Final answer
    x = 28,710.46

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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.