Home / 55,311.52-76,329.36-30,159.52

Finding the Fourth Proportional to 55,311.52, 76,329.36 and 30,159.52

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Solution

The fourth proportional to 55,311.52, 76,329.36 and 30,159.52 is: 41,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,311.52 : 76,329.36 = 30,159.52 : x
  2. Step 2: Convert to fraction form
    55,311.52/76,329.36 = 30,159.52/x
  3. Step 3: Cross multiply
    55,311.52x = 76,329.36 × 30,159.52
  4. Step 4: Simplify right side
    55,311.52x = 2,302,056,859.51
  5. Step 5: Solve for x
    x = 2,302,056,859.51/55,311.52
  6. Step 6: Final answer
    x = 41,619.84

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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.