Home / 81,358.24-112,284.96-45,561.92

Finding the Fourth Proportional to 81,358.24, 112,284.96 and 45,561.92

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Solution

The fourth proportional to 81,358.24, 112,284.96 and 45,561.92 is: 62,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,358.24 : 112,284.96 = 45,561.92 : x
  2. Step 2: Convert to fraction form
    81,358.24/112,284.96 = 45,561.92/x
  3. Step 3: Cross multiply
    81,358.24x = 112,284.96 × 45,561.92
  4. Step 4: Simplify right side
    81,358.24x = 5,115,918,364.72
  5. Step 5: Solve for x
    x = 5,115,918,364.72/81,358.24
  6. Step 6: Final answer
    x = 62,881.38

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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.