Home / 81,134.29-111,971.38-46,689.58

Finding the Fourth Proportional to 81,134.29, 111,971.38 and 46,689.58

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Solution

The fourth proportional to 81,134.29, 111,971.38 and 46,689.58 is: 64,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,134.29 : 111,971.38 = 46,689.58 : x
  2. Step 2: Convert to fraction form
    81,134.29/111,971.38 = 46,689.58/x
  3. Step 3: Cross multiply
    81,134.29x = 111,971.38 × 46,689.58
  4. Step 4: Simplify right side
    81,134.29x = 5,227,896,307.57
  5. Step 5: Solve for x
    x = 5,227,896,307.57/81,134.29
  6. Step 6: Final answer
    x = 64,435.10

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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.