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Finding the Fourth Proportional to 65,472.80, 90,349.26 and 37,177.88

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Solution

The fourth proportional to 65,472.80, 90,349.26 and 37,177.88 is: 51,303.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,472.80 : 90,349.26 = 37,177.88 : x
  2. Step 2: Convert to fraction form
    65,472.80/90,349.26 = 37,177.88/x
  3. Step 3: Cross multiply
    65,472.80x = 90,349.26 × 37,177.88
  4. Step 4: Simplify right side
    65,472.80x = 3,358,993,946.37
  5. Step 5: Solve for x
    x = 3,358,993,946.37/65,472.80
  6. Step 6: Final answer
    x = 51,303.66

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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.