Home / 55,275.03-76,279.80-31,403.01

Finding the Fourth Proportional to 55,275.03, 76,279.80 and 31,403.01

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Solution

The fourth proportional to 55,275.03, 76,279.80 and 31,403.01 is: 43,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.03 : 76,279.80 = 31,403.01 : x
  2. Step 2: Convert to fraction form
    55,275.03/76,279.80 = 31,403.01/x
  3. Step 3: Cross multiply
    55,275.03x = 76,279.80 × 31,403.01
  4. Step 4: Simplify right side
    55,275.03x = 2,395,415,549.37
  5. Step 5: Solve for x
    x = 2,395,415,549.37/55,275.03
  6. Step 6: Final answer
    x = 43,336.30

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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.