Home / 55,346.13-76,378.54-30,195.63

Finding the Fourth Proportional to 55,346.13, 76,378.54 and 30,195.63

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Solution

The fourth proportional to 55,346.13, 76,378.54 and 30,195.63 is: 41,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,346.13 : 76,378.54 = 30,195.63 : x
  2. Step 2: Convert to fraction form
    55,346.13/76,378.54 = 30,195.63/x
  3. Step 3: Cross multiply
    55,346.13x = 76,378.54 × 30,195.63
  4. Step 4: Simplify right side
    55,346.13x = 2,306,298,133.78
  5. Step 5: Solve for x
    x = 2,306,298,133.78/55,346.13
  6. Step 6: Final answer
    x = 41,670.45

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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.