Home / 51,469.56-77,054.10-31,688.76

Finding the Fourth Proportional to 51,469.56, 77,054.10 and 31,688.76

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Solution

The fourth proportional to 51,469.56, 77,054.10 and 31,688.76 is: 47,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,469.56 : 77,054.10 = 31,688.76 : x
  2. Step 2: Convert to fraction form
    51,469.56/77,054.10 = 31,688.76/x
  3. Step 3: Cross multiply
    51,469.56x = 77,054.10 × 31,688.76
  4. Step 4: Simplify right side
    51,469.56x = 2,441,748,881.92
  5. Step 5: Solve for x
    x = 2,441,748,881.92/51,469.56
  6. Step 6: Final answer
    x = 47,440.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.