Home / 55,210.98-76,191.51-31,338.05

Finding the Fourth Proportional to 55,210.98, 76,191.51 and 31,338.05

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Solution

The fourth proportional to 55,210.98, 76,191.51 and 31,338.05 is: 43,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,210.98 : 76,191.51 = 31,338.05 : x
  2. Step 2: Convert to fraction form
    55,210.98/76,191.51 = 31,338.05/x
  3. Step 3: Cross multiply
    55,210.98x = 76,191.51 × 31,338.05
  4. Step 4: Simplify right side
    55,210.98x = 2,387,693,349.96
  5. Step 5: Solve for x
    x = 2,387,693,349.96/55,210.98
  6. Step 6: Final answer
    x = 43,246.71

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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.