Home / 55,985.10-83,953.35-18,530.70

Finding the Fourth Proportional to 55,985.10, 83,953.35 and 18,530.70

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Solution

The fourth proportional to 55,985.10, 83,953.35 and 18,530.70 is: 27,788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,985.10 : 83,953.35 = 18,530.70 : x
  2. Step 2: Convert to fraction form
    55,985.10/83,953.35 = 18,530.70/x
  3. Step 3: Cross multiply
    55,985.10x = 83,953.35 × 18,530.70
  4. Step 4: Simplify right side
    55,985.10x = 1,555,714,342.85
  5. Step 5: Solve for x
    x = 1,555,714,342.85/55,985.10
  6. Step 6: Final answer
    x = 27,788.01

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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.