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Finding the Fourth Proportional to 64,803.79, 97,065.03 and 31,453.77

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Solution

The fourth proportional to 64,803.79, 97,065.03 and 31,453.77 is: 47,112.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,803.79 : 97,065.03 = 31,453.77 : x
  2. Step 2: Convert to fraction form
    64,803.79/97,065.03 = 31,453.77/x
  3. Step 3: Cross multiply
    64,803.79x = 97,065.03 × 31,453.77
  4. Step 4: Simplify right side
    64,803.79x = 3,053,061,128.66
  5. Step 5: Solve for x
    x = 3,053,061,128.66/64,803.79
  6. Step 6: Final answer
    x = 47,112.39

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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.