Home / 81,519.17-112,496.35-45,226.12

Finding the Fourth Proportional to 81,519.17, 112,496.35 and 45,226.12

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Solution

The fourth proportional to 81,519.17, 112,496.35 and 45,226.12 is: 62,411.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,519.17 : 112,496.35 = 45,226.12 : x
  2. Step 2: Convert to fraction form
    81,519.17/112,496.35 = 45,226.12/x
  3. Step 3: Cross multiply
    81,519.17x = 112,496.35 × 45,226.12
  4. Step 4: Simplify right side
    81,519.17x = 5,087,773,389.68
  5. Step 5: Solve for x
    x = 5,087,773,389.68/81,519.17
  6. Step 6: Final answer
    x = 62,411.99

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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.