Home / 81,364.11-112,282.64-45,555.63

Finding the Fourth Proportional to 81,364.11, 112,282.64 and 45,555.63

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Solution

The fourth proportional to 81,364.11, 112,282.64 and 45,555.63 is: 62,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,364.11 : 112,282.64 = 45,555.63 : x
  2. Step 2: Convert to fraction form
    81,364.11/112,282.64 = 45,555.63/x
  3. Step 3: Cross multiply
    81,364.11x = 112,282.64 × 45,555.63
  4. Step 4: Simplify right side
    81,364.11x = 5,115,106,403.26
  5. Step 5: Solve for x
    x = 5,115,106,403.26/81,364.11
  6. Step 6: Final answer
    x = 62,866.86

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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.