Home / 77,017.12-115,529.76-21,617.44

Finding the Fourth Proportional to 77,017.12, 115,529.76 and 21,617.44

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Solution

The fourth proportional to 77,017.12, 115,529.76 and 21,617.44 is: 32,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,017.12 : 115,529.76 = 21,617.44 : x
  2. Step 2: Convert to fraction form
    77,017.12/115,529.76 = 21,617.44/x
  3. Step 3: Cross multiply
    77,017.12x = 115,529.76 × 21,617.44
  4. Step 4: Simplify right side
    77,017.12x = 2,497,457,655.01
  5. Step 5: Solve for x
    x = 2,497,457,655.01/77,017.12
  6. Step 6: Final answer
    x = 32,427.31

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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.