Home / 55,182.12-76,159.35-30,985.80

Finding the Fourth Proportional to 55,182.12, 76,159.35 and 30,985.80

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Solution

The fourth proportional to 55,182.12, 76,159.35 and 30,985.80 is: 42,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,182.12 : 76,159.35 = 30,985.80 : x
  2. Step 2: Convert to fraction form
    55,182.12/76,159.35 = 30,985.80/x
  3. Step 3: Cross multiply
    55,182.12x = 76,159.35 × 30,985.80
  4. Step 4: Simplify right side
    55,182.12x = 2,359,858,387.23
  5. Step 5: Solve for x
    x = 2,359,858,387.23/55,182.12
  6. Step 6: Final answer
    x = 42,764.91

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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.