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Finding the Fourth Proportional to 65,602.02, 90,532.78 and 37,311.78

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Solution

The fourth proportional to 65,602.02, 90,532.78 and 37,311.78 is: 51,491.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,602.02 : 90,532.78 = 37,311.78 : x
  2. Step 2: Convert to fraction form
    65,602.02/90,532.78 = 37,311.78/x
  3. Step 3: Cross multiply
    65,602.02x = 90,532.78 × 37,311.78
  4. Step 4: Simplify right side
    65,602.02x = 3,377,939,170.15
  5. Step 5: Solve for x
    x = 3,377,939,170.15/65,602.02
  6. Step 6: Final answer
    x = 51,491.39

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1.5x scale

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.