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Finding the Fourth Proportional to 77,437.83, 116,135.67 and 21,264.63

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Solution

The fourth proportional to 77,437.83, 116,135.67 and 21,264.63 is: 31,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,437.83 : 116,135.67 = 21,264.63 : x
  2. Step 2: Convert to fraction form
    77,437.83/116,135.67 = 21,264.63/x
  3. Step 3: Cross multiply
    77,437.83x = 116,135.67 × 21,264.63
  4. Step 4: Simplify right side
    77,437.83x = 2,469,582,052.35
  5. Step 5: Solve for x
    x = 2,469,582,052.35/77,437.83
  6. Step 6: Final answer
    x = 31,891.16

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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.