Home / 51,385.89-70,923.96-31,238.50

Finding the Fourth Proportional to 51,385.89, 70,923.96 and 31,238.50

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Solution

The fourth proportional to 51,385.89, 70,923.96 and 31,238.50 is: 43,116.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.89 : 70,923.96 = 31,238.50 : x
  2. Step 2: Convert to fraction form
    51,385.89/70,923.96 = 31,238.50/x
  3. Step 3: Cross multiply
    51,385.89x = 70,923.96 × 31,238.50
  4. Step 4: Simplify right side
    51,385.89x = 2,215,558,124.46
  5. Step 5: Solve for x
    x = 2,215,558,124.46/51,385.89
  6. Step 6: Final answer
    x = 43,116.08

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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.