Home / 51,330.89-70,836.96-28,670.05

Finding the Fourth Proportional to 51,330.89, 70,836.96 and 28,670.05

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Solution

The fourth proportional to 51,330.89, 70,836.96 and 28,670.05 is: 39,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,330.89 : 70,836.96 = 28,670.05 : x
  2. Step 2: Convert to fraction form
    51,330.89/70,836.96 = 28,670.05/x
  3. Step 3: Cross multiply
    51,330.89x = 70,836.96 × 28,670.05
  4. Step 4: Simplify right side
    51,330.89x = 2,030,899,045.31
  5. Step 5: Solve for x
    x = 2,030,899,045.31/51,330.89
  6. Step 6: Final answer
    x = 39,564.85

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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.