Home / 81,630.74-112,636.17-45,822.26

Finding the Fourth Proportional to 81,630.74, 112,636.17 and 45,822.26

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Solution

The fourth proportional to 81,630.74, 112,636.17 and 45,822.26 is: 63,226.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,630.74 : 112,636.17 = 45,822.26 : x
  2. Step 2: Convert to fraction form
    81,630.74/112,636.17 = 45,822.26/x
  3. Step 3: Cross multiply
    81,630.74x = 112,636.17 × 45,822.26
  4. Step 4: Simplify right side
    81,630.74x = 5,161,243,867.14
  5. Step 5: Solve for x
    x = 5,161,243,867.14/81,630.74
  6. Step 6: Final answer
    x = 63,226.72

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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.