Home / 55,786.16-76,985.40-30,635.84

Finding the Fourth Proportional to 55,786.16, 76,985.40 and 30,635.84

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Solution

The fourth proportional to 55,786.16, 76,985.40 and 30,635.84 is: 42,277.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,786.16 : 76,985.40 = 30,635.84 : x
  2. Step 2: Convert to fraction form
    55,786.16/76,985.40 = 30,635.84/x
  3. Step 3: Cross multiply
    55,786.16x = 76,985.40 × 30,635.84
  4. Step 4: Simplify right side
    55,786.16x = 2,358,512,396.74
  5. Step 5: Solve for x
    x = 2,358,512,396.74/55,786.16
  6. Step 6: Final answer
    x = 42,277.73

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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.