Home / 81,828.18-112,918.05-45,528.66

Finding the Fourth Proportional to 81,828.18, 112,918.05 and 45,528.66

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Solution

The fourth proportional to 81,828.18, 112,918.05 and 45,528.66 is: 62,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,828.18 : 112,918.05 = 45,528.66 : x
  2. Step 2: Convert to fraction form
    81,828.18/112,918.05 = 45,528.66/x
  3. Step 3: Cross multiply
    81,828.18x = 112,918.05 × 45,528.66
  4. Step 4: Simplify right side
    81,828.18x = 5,141,007,506.31
  5. Step 5: Solve for x
    x = 5,141,007,506.31/81,828.18
  6. Step 6: Final answer
    x = 62,826.86

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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.