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Finding the Fourth Proportional to 51,562.58, 77,347.91 and 21,980.63

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Solution

The fourth proportional to 51,562.58, 77,347.91 and 21,980.63 is: 32,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,562.58 : 77,347.91 = 21,980.63 : x
  2. Step 2: Convert to fraction form
    51,562.58/77,347.91 = 21,980.63/x
  3. Step 3: Cross multiply
    51,562.58x = 77,347.91 × 21,980.63
  4. Step 4: Simplify right side
    51,562.58x = 1,700,156,039.30
  5. Step 5: Solve for x
    x = 1,700,156,039.30/51,562.58
  6. Step 6: Final answer
    x = 32,972.68

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1.5x scale

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.