Home / 81,326.90-112,227.09-45,516.98

Finding the Fourth Proportional to 81,326.90, 112,227.09 and 45,516.98

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Solution

The fourth proportional to 81,326.90, 112,227.09 and 45,516.98 is: 62,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.90 : 112,227.09 = 45,516.98 : x
  2. Step 2: Convert to fraction form
    81,326.90/112,227.09 = 45,516.98/x
  3. Step 3: Cross multiply
    81,326.90x = 112,227.09 × 45,516.98
  4. Step 4: Simplify right side
    81,326.90x = 5,108,238,210.99
  5. Step 5: Solve for x
    x = 5,108,238,210.99/81,326.90
  6. Step 6: Final answer
    x = 62,811.18

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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.