Home / 55,890.50-77,128.52-31,696.04

Finding the Fourth Proportional to 55,890.50, 77,128.52 and 31,696.04

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Solution

The fourth proportional to 55,890.50, 77,128.52 and 31,696.04 is: 43,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,890.50 : 77,128.52 = 31,696.04 : x
  2. Step 2: Convert to fraction form
    55,890.50/77,128.52 = 31,696.04/x
  3. Step 3: Cross multiply
    55,890.50x = 77,128.52 × 31,696.04
  4. Step 4: Simplify right side
    55,890.50x = 2,444,668,655.06
  5. Step 5: Solve for x
    x = 2,444,668,655.06/55,890.50
  6. Step 6: Final answer
    x = 43,740.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.