Home / 55,279.10-76,277.45-31,076.75

Finding the Fourth Proportional to 55,279.10, 76,277.45 and 31,076.75

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Solution

The fourth proportional to 55,279.10, 76,277.45 and 31,076.75 is: 42,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,279.10 : 76,277.45 = 31,076.75 : x
  2. Step 2: Convert to fraction form
    55,279.10/76,277.45 = 31,076.75/x
  3. Step 3: Cross multiply
    55,279.10x = 76,277.45 × 31,076.75
  4. Step 4: Simplify right side
    55,279.10x = 2,370,455,337.87
  5. Step 5: Solve for x
    x = 2,370,455,337.87/55,279.10
  6. Step 6: Final answer
    x = 42,881.59

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1.5x scale

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.