Home / 55,756.08-83,643.12-18,305.28

Finding the Fourth Proportional to 55,756.08, 83,643.12 and 18,305.28

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Solution

The fourth proportional to 55,756.08, 83,643.12 and 18,305.28 is: 27,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,756.08 : 83,643.12 = 18,305.28 : x
  2. Step 2: Convert to fraction form
    55,756.08/83,643.12 = 18,305.28/x
  3. Step 3: Cross multiply
    55,756.08x = 83,643.12 × 18,305.28
  4. Step 4: Simplify right side
    55,756.08x = 1,531,110,731.67
  5. Step 5: Solve for x
    x = 1,531,110,731.67/55,756.08
  6. Step 6: Final answer
    x = 27,460.87

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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.