Home / 80,765.34-111,220.98-62,830.14

Finding the Fourth Proportional to 80,765.34, 111,220.98 and 62,830.14

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Solution

The fourth proportional to 80,765.34, 111,220.98 and 62,830.14 is: 86,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,765.34 : 111,220.98 = 62,830.14 : x
  2. Step 2: Convert to fraction form
    80,765.34/111,220.98 = 62,830.14/x
  3. Step 3: Cross multiply
    80,765.34x = 111,220.98 × 62,830.14
  4. Step 4: Simplify right side
    80,765.34x = 6,988,029,744.34
  5. Step 5: Solve for x
    x = 6,988,029,744.34/80,765.34
  6. Step 6: Final answer
    x = 86,522.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.