Home / 81,703.59-112,761.72-45,895.56

Finding the Fourth Proportional to 81,703.59, 112,761.72 and 45,895.56

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Solution

The fourth proportional to 81,703.59, 112,761.72 and 45,895.56 is: 63,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,703.59 : 112,761.72 = 45,895.56 : x
  2. Step 2: Convert to fraction form
    81,703.59/112,761.72 = 45,895.56/x
  3. Step 3: Cross multiply
    81,703.59x = 112,761.72 × 45,895.56
  4. Step 4: Simplify right side
    81,703.59x = 5,175,262,497.39
  5. Step 5: Solve for x
    x = 5,175,262,497.39/81,703.59
  6. Step 6: Final answer
    x = 63,341.93

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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.