Home / 55,336.31-76,356.40-31,460.34

Finding the Fourth Proportional to 55,336.31, 76,356.40 and 31,460.34

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Solution

The fourth proportional to 55,336.31, 76,356.40 and 31,460.34 is: 43,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,336.31 : 76,356.40 = 31,460.34 : x
  2. Step 2: Convert to fraction form
    55,336.31/76,356.40 = 31,460.34/x
  3. Step 3: Cross multiply
    55,336.31x = 76,356.40 × 31,460.34
  4. Step 4: Simplify right side
    55,336.31x = 2,402,198,305.18
  5. Step 5: Solve for x
    x = 2,402,198,305.18/55,336.31
  6. Step 6: Final answer
    x = 43,410.89

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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.