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Finding the Fourth Proportional to 77,520.53, 116,259.98 and 21,347.27

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Solution

The fourth proportional to 77,520.53, 116,259.98 and 21,347.27 is: 32,015.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,520.53 : 116,259.98 = 21,347.27 : x
  2. Step 2: Convert to fraction form
    77,520.53/116,259.98 = 21,347.27/x
  3. Step 3: Cross multiply
    77,520.53x = 116,259.98 × 21,347.27
  4. Step 4: Simplify right side
    77,520.53x = 2,481,832,495.22
  5. Step 5: Solve for x
    x = 2,481,832,495.22/77,520.53
  6. Step 6: Final answer
    x = 32,015.17

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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.