Home / 55,456.36-76,530.18-30,308.20

Finding the Fourth Proportional to 55,456.36, 76,530.18 and 30,308.20

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Solution

The fourth proportional to 55,456.36, 76,530.18 and 30,308.20 is: 41,825.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,456.36 : 76,530.18 = 30,308.20 : x
  2. Step 2: Convert to fraction form
    55,456.36/76,530.18 = 30,308.20/x
  3. Step 3: Cross multiply
    55,456.36x = 76,530.18 × 30,308.20
  4. Step 4: Simplify right side
    55,456.36x = 2,319,492,001.48
  5. Step 5: Solve for x
    x = 2,319,492,001.48/55,456.36
  6. Step 6: Final answer
    x = 41,825.54

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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.