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Finding the Fourth Proportional to 61,970.58, 85,491.90 and 36,805.50

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Solution

The fourth proportional to 61,970.58, 85,491.90 and 36,805.50 is: 50,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,970.58 : 85,491.90 = 36,805.50 : x
  2. Step 2: Convert to fraction form
    61,970.58/85,491.90 = 36,805.50/x
  3. Step 3: Cross multiply
    61,970.58x = 85,491.90 × 36,805.50
  4. Step 4: Simplify right side
    61,970.58x = 3,146,572,125.45
  5. Step 5: Solve for x
    x = 3,146,572,125.45/61,970.58
  6. Step 6: Final answer
    x = 50,775.26

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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.