Home / 55,113.23-76,056.75-31,235.45

Finding the Fourth Proportional to 55,113.23, 76,056.75 and 31,235.45

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Solution

The fourth proportional to 55,113.23, 76,056.75 and 31,235.45 is: 43,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.23 : 76,056.75 = 31,235.45 : x
  2. Step 2: Convert to fraction form
    55,113.23/76,056.75 = 31,235.45/x
  3. Step 3: Cross multiply
    55,113.23x = 76,056.75 × 31,235.45
  4. Step 4: Simplify right side
    55,113.23x = 2,375,666,431.50
  5. Step 5: Solve for x
    x = 2,375,666,431.50/55,113.23
  6. Step 6: Final answer
    x = 43,105.19

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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.