Home / 55,606.06-83,417.61-18,678.70

Finding the Fourth Proportional to 55,606.06, 83,417.61 and 18,678.70

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Solution

The fourth proportional to 55,606.06, 83,417.61 and 18,678.70 is: 28,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,606.06 : 83,417.61 = 18,678.70 : x
  2. Step 2: Convert to fraction form
    55,606.06/83,417.61 = 18,678.70/x
  3. Step 3: Cross multiply
    55,606.06x = 83,417.61 × 18,678.70
  4. Step 4: Simplify right side
    55,606.06x = 1,558,132,511.91
  5. Step 5: Solve for x
    x = 1,558,132,511.91/55,606.06
  6. Step 6: Final answer
    x = 28,020.91

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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.