Home / 71,064.18-106,577.70-21,130.82

Finding the Fourth Proportional to 71,064.18, 106,577.70 and 21,130.82

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Solution

The fourth proportional to 71,064.18, 106,577.70 and 21,130.82 is: 31,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,064.18 : 106,577.70 = 21,130.82 : x
  2. Step 2: Convert to fraction form
    71,064.18/106,577.70 = 21,130.82/x
  3. Step 3: Cross multiply
    71,064.18x = 106,577.70 × 21,130.82
  4. Step 4: Simplify right side
    71,064.18x = 2,252,074,194.71
  5. Step 5: Solve for x
    x = 2,252,074,194.71/71,064.18
  6. Step 6: Final answer
    x = 31,690.71

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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.