Home / 55,318.08-82,985.36-17,871.20

Finding the Fourth Proportional to 55,318.08, 82,985.36 and 17,871.20

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Solution

The fourth proportional to 55,318.08, 82,985.36 and 17,871.20 is: 26,809.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,318.08 : 82,985.36 = 17,871.20 : x
  2. Step 2: Convert to fraction form
    55,318.08/82,985.36 = 17,871.20/x
  3. Step 3: Cross multiply
    55,318.08x = 82,985.36 × 17,871.20
  4. Step 4: Simplify right side
    55,318.08x = 1,483,047,965.63
  5. Step 5: Solve for x
    x = 1,483,047,965.63/55,318.08
  6. Step 6: Final answer
    x = 26,809.46

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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.