Home / 55,338.40-76,368.72-30,190.24

Finding the Fourth Proportional to 55,338.40, 76,368.72 and 30,190.24

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Solution

The fourth proportional to 55,338.40, 76,368.72 and 30,190.24 is: 41,663.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,338.40 : 76,368.72 = 30,190.24 : x
  2. Step 2: Convert to fraction form
    55,338.40/76,368.72 = 30,190.24/x
  3. Step 3: Cross multiply
    55,338.40x = 76,368.72 × 30,190.24
  4. Step 4: Simplify right side
    55,338.40x = 2,305,589,985.29
  5. Step 5: Solve for x
    x = 2,305,589,985.29/55,338.40
  6. Step 6: Final answer
    x = 41,663.47

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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.