Home / 81,966-113,110.04-45,666.59

Finding the Fourth Proportional to 81,966, 113,110.04 and 45,666.59

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Solution

The fourth proportional to 81,966, 113,110.04 and 45,666.59 is: 63,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,966 : 113,110.04 = 45,666.59 : x
  2. Step 2: Convert to fraction form
    81,966/113,110.04 = 45,666.59/x
  3. Step 3: Cross multiply
    81,966x = 113,110.04 × 45,666.59
  4. Step 4: Simplify right side
    81,966x = 5,165,349,593.23
  5. Step 5: Solve for x
    x = 5,165,349,593.23/81,966
  6. Step 6: Final answer
    x = 63,018.20

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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.