Home / 81,643.13-112,666.53-45,832.22

Finding the Fourth Proportional to 81,643.13, 112,666.53 and 45,832.22

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Solution

The fourth proportional to 81,643.13, 112,666.53 and 45,832.22 is: 63,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,643.13 : 112,666.53 = 45,832.22 : x
  2. Step 2: Convert to fraction form
    81,643.13/112,666.53 = 45,832.22/x
  3. Step 3: Cross multiply
    81,643.13x = 112,666.53 × 45,832.22
  4. Step 4: Simplify right side
    81,643.13x = 5,163,757,643.13
  5. Step 5: Solve for x
    x = 5,163,757,643.13/81,643.13
  6. Step 6: Final answer
    x = 63,247.91

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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.