Home / 81,588.20-112,589.93-45,287.51

Finding the Fourth Proportional to 81,588.20, 112,589.93 and 45,287.51

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Solution

The fourth proportional to 81,588.20, 112,589.93 and 45,287.51 is: 62,495.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,588.20 : 112,589.93 = 45,287.51 : x
  2. Step 2: Convert to fraction form
    81,588.20/112,589.93 = 45,287.51/x
  3. Step 3: Cross multiply
    81,588.20x = 112,589.93 × 45,287.51
  4. Step 4: Simplify right side
    81,588.20x = 5,098,917,131.04
  5. Step 5: Solve for x
    x = 5,098,917,131.04/81,588.20
  6. Step 6: Final answer
    x = 62,495.77

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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.