Home / 81,746.80-112,813.92-45,936.72

Finding the Fourth Proportional to 81,746.80, 112,813.92 and 45,936.72

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Solution

The fourth proportional to 81,746.80, 112,813.92 and 45,936.72 is: 63,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,746.80 : 112,813.92 = 45,936.72 : x
  2. Step 2: Convert to fraction form
    81,746.80/112,813.92 = 45,936.72/x
  3. Step 3: Cross multiply
    81,746.80x = 112,813.92 × 45,936.72
  4. Step 4: Simplify right side
    81,746.80x = 5,182,301,455.14
  5. Step 5: Solve for x
    x = 5,182,301,455.14/81,746.80
  6. Step 6: Final answer
    x = 63,394.55

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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.