Home / 55,309.40-76,326.96-30,158.90

Finding the Fourth Proportional to 55,309.40, 76,326.96 and 30,158.90

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Solution

The fourth proportional to 55,309.40, 76,326.96 and 30,158.90 is: 41,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,309.40 : 76,326.96 = 30,158.90 : x
  2. Step 2: Convert to fraction form
    55,309.40/76,326.96 = 30,158.90/x
  3. Step 3: Cross multiply
    55,309.40x = 76,326.96 × 30,158.90
  4. Step 4: Simplify right side
    55,309.40x = 2,301,937,153.94
  5. Step 5: Solve for x
    x = 2,301,937,153.94/55,309.40
  6. Step 6: Final answer
    x = 41,619.28

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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.