Home / 54,885.64-75,741.19-31,011.80

Finding the Fourth Proportional to 54,885.64, 75,741.19 and 31,011.80

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Solution

The fourth proportional to 54,885.64, 75,741.19 and 31,011.80 is: 42,795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,885.64 : 75,741.19 = 31,011.80 : x
  2. Step 2: Convert to fraction form
    54,885.64/75,741.19 = 31,011.80/x
  3. Step 3: Cross multiply
    54,885.64x = 75,741.19 × 31,011.80
  4. Step 4: Simplify right side
    54,885.64x = 2,348,870,438.12
  5. Step 5: Solve for x
    x = 2,348,870,438.12/54,885.64
  6. Step 6: Final answer
    x = 42,795.72

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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.