Home / 81,828.43-112,918.39-45,528.91

Finding the Fourth Proportional to 81,828.43, 112,918.39 and 45,528.91

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Solution

The fourth proportional to 81,828.43, 112,918.39 and 45,528.91 is: 62,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,828.43 : 112,918.39 = 45,528.91 : x
  2. Step 2: Convert to fraction form
    81,828.43/112,918.39 = 45,528.91/x
  3. Step 3: Cross multiply
    81,828.43x = 112,918.39 × 45,528.91
  4. Step 4: Simplify right side
    81,828.43x = 5,141,051,215.65
  5. Step 5: Solve for x
    x = 5,141,051,215.65/81,828.43
  6. Step 6: Final answer
    x = 62,827.20

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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.