Home / 40,113.12-55,360.18-23,117.96

Finding the Fourth Proportional to 40,113.12, 55,360.18 and 23,117.96

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Solution

The fourth proportional to 40,113.12, 55,360.18 and 23,117.96 is: 31,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,113.12 : 55,360.18 = 23,117.96 : x
  2. Step 2: Convert to fraction form
    40,113.12/55,360.18 = 23,117.96/x
  3. Step 3: Cross multiply
    40,113.12x = 55,360.18 × 23,117.96
  4. Step 4: Simplify right side
    40,113.12x = 1,279,814,426.83
  5. Step 5: Solve for x
    x = 1,279,814,426.83/40,113.12
  6. Step 6: Final answer
    x = 31,905.13

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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.