Home / 55,166-76,130.70-30,017.12

Finding the Fourth Proportional to 55,166, 76,130.70 and 30,017.12

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Solution

The fourth proportional to 55,166, 76,130.70 and 30,017.12 is: 41,424.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,166 : 76,130.70 = 30,017.12 : x
  2. Step 2: Convert to fraction form
    55,166/76,130.70 = 30,017.12/x
  3. Step 3: Cross multiply
    55,166x = 76,130.70 × 30,017.12
  4. Step 4: Simplify right side
    55,166x = 2,285,224,357.58
  5. Step 5: Solve for x
    x = 2,285,224,357.58/55,166
  6. Step 6: Final answer
    x = 41,424.51

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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.