Home / 55,403.39-76,455.72-31,529.58

Finding the Fourth Proportional to 55,403.39, 76,455.72 and 31,529.58

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Solution

The fourth proportional to 55,403.39, 76,455.72 and 31,529.58 is: 43,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,403.39 : 76,455.72 = 31,529.58 : x
  2. Step 2: Convert to fraction form
    55,403.39/76,455.72 = 31,529.58/x
  3. Step 3: Cross multiply
    55,403.39x = 76,455.72 × 31,529.58
  4. Step 4: Simplify right side
    55,403.39x = 2,410,616,740.20
  5. Step 5: Solve for x
    x = 2,410,616,740.20/55,403.39
  6. Step 6: Final answer
    x = 43,510.28

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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.