Home / 81,966.48-113,115.67-45,670.38

Finding the Fourth Proportional to 81,966.48, 113,115.67 and 45,670.38

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Solution

The fourth proportional to 81,966.48, 113,115.67 and 45,670.38 is: 63,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,966.48 : 113,115.67 = 45,670.38 : x
  2. Step 2: Convert to fraction form
    81,966.48/113,115.67 = 45,670.38/x
  3. Step 3: Cross multiply
    81,966.48x = 113,115.67 × 45,670.38
  4. Step 4: Simplify right side
    81,966.48x = 5,166,035,987.67
  5. Step 5: Solve for x
    x = 5,166,035,987.67/81,966.48
  6. Step 6: Final answer
    x = 63,026.20

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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.