Home / 55,041.72-82,562.58-19,981.32

Finding the Fourth Proportional to 55,041.72, 82,562.58 and 19,981.32

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Solution

The fourth proportional to 55,041.72, 82,562.58 and 19,981.32 is: 29,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,041.72 : 82,562.58 = 19,981.32 : x
  2. Step 2: Convert to fraction form
    55,041.72/82,562.58 = 19,981.32/x
  3. Step 3: Cross multiply
    55,041.72x = 82,562.58 × 19,981.32
  4. Step 4: Simplify right side
    55,041.72x = 1,649,709,331.01
  5. Step 5: Solve for x
    x = 1,649,709,331.01/55,041.72
  6. Step 6: Final answer
    x = 29,971.98

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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.