Home / 54,885.75-75,741.35-31,011.91

Finding the Fourth Proportional to 54,885.75, 75,741.35 and 31,011.91

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Solution

The fourth proportional to 54,885.75, 75,741.35 and 31,011.91 is: 42,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,885.75 : 75,741.35 = 31,011.91 : x
  2. Step 2: Convert to fraction form
    54,885.75/75,741.35 = 31,011.91/x
  3. Step 3: Cross multiply
    54,885.75x = 75,741.35 × 31,011.91
  4. Step 4: Simplify right side
    54,885.75x = 2,348,884,272.77
  5. Step 5: Solve for x
    x = 2,348,884,272.77/54,885.75
  6. Step 6: Final answer
    x = 42,795.88

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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.