Home / 57,461.32-86,170.64-20,011.78

Finding the Fourth Proportional to 57,461.32, 86,170.64 and 20,011.78

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Solution

The fourth proportional to 57,461.32, 86,170.64 and 20,011.78 is: 30,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,461.32 : 86,170.64 = 20,011.78 : x
  2. Step 2: Convert to fraction form
    57,461.32/86,170.64 = 20,011.78/x
  3. Step 3: Cross multiply
    57,461.32x = 86,170.64 × 20,011.78
  4. Step 4: Simplify right side
    57,461.32x = 1,724,427,890.14
  5. Step 5: Solve for x
    x = 1,724,427,890.14/57,461.32
  6. Step 6: Final answer
    x = 30,010.24

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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.