Home / 55,270.64-76,275.52-31,401.35

Finding the Fourth Proportional to 55,270.64, 76,275.52 and 31,401.35

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Solution

The fourth proportional to 55,270.64, 76,275.52 and 31,401.35 is: 43,335.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,270.64 : 76,275.52 = 31,401.35 : x
  2. Step 2: Convert to fraction form
    55,270.64/76,275.52 = 31,401.35/x
  3. Step 3: Cross multiply
    55,270.64x = 76,275.52 × 31,401.35
  4. Step 4: Simplify right side
    55,270.64x = 2,395,154,412.14
  5. Step 5: Solve for x
    x = 2,395,154,412.14/55,270.64
  6. Step 6: Final answer
    x = 43,335.03

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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.