Home / 55,302.18-76,323.50-31,432.45

Finding the Fourth Proportional to 55,302.18, 76,323.50 and 31,432.45

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Solution

The fourth proportional to 55,302.18, 76,323.50 and 31,432.45 is: 43,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,302.18 : 76,323.50 = 31,432.45 : x
  2. Step 2: Convert to fraction form
    55,302.18/76,323.50 = 31,432.45/x
  3. Step 3: Cross multiply
    55,302.18x = 76,323.50 × 31,432.45
  4. Step 4: Simplify right side
    55,302.18x = 2,399,034,215.96
  5. Step 5: Solve for x
    x = 2,399,034,215.96/55,302.18
  6. Step 6: Final answer
    x = 43,380.46

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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.