Home / 81,236.13-112,108.92-45,426.06

Finding the Fourth Proportional to 81,236.13, 112,108.92 and 45,426.06

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Solution

The fourth proportional to 81,236.13, 112,108.92 and 45,426.06 is: 62,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,236.13 : 112,108.92 = 45,426.06 : x
  2. Step 2: Convert to fraction form
    81,236.13/112,108.92 = 45,426.06/x
  3. Step 3: Cross multiply
    81,236.13x = 112,108.92 × 45,426.06
  4. Step 4: Simplify right side
    81,236.13x = 5,092,666,596.68
  5. Step 5: Solve for x
    x = 5,092,666,596.68/81,236.13
  6. Step 6: Final answer
    x = 62,689.67

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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.