Home / 55,521-76,619.14-30,370.28

Finding the Fourth Proportional to 55,521, 76,619.14 and 30,370.28

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Solution

The fourth proportional to 55,521, 76,619.14 and 30,370.28 is: 41,911.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,521 : 76,619.14 = 30,370.28 : x
  2. Step 2: Convert to fraction form
    55,521/76,619.14 = 30,370.28/x
  3. Step 3: Cross multiply
    55,521x = 76,619.14 × 30,370.28
  4. Step 4: Simplify right side
    55,521x = 2,326,944,735.16
  5. Step 5: Solve for x
    x = 2,326,944,735.16/55,521
  6. Step 6: Final answer
    x = 41,911.07

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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.