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Finding the Fourth Proportional to 65,365.02, 90,250.02 and 51,040.98

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Solution

The fourth proportional to 65,365.02, 90,250.02 and 51,040.98 is: 70,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,365.02 : 90,250.02 = 51,040.98 : x
  2. Step 2: Convert to fraction form
    65,365.02/90,250.02 = 51,040.98/x
  3. Step 3: Cross multiply
    65,365.02x = 90,250.02 × 51,040.98
  4. Step 4: Simplify right side
    65,365.02x = 4,606,449,465.82
  5. Step 5: Solve for x
    x = 4,606,449,465.82/65,365.02
  6. Step 6: Final answer
    x = 70,472.70

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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.