Home / 55,188.95-76,158.49-31,315.12

Finding the Fourth Proportional to 55,188.95, 76,158.49 and 31,315.12

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Solution

The fourth proportional to 55,188.95, 76,158.49 and 31,315.12 is: 43,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,188.95 : 76,158.49 = 31,315.12 : x
  2. Step 2: Convert to fraction form
    55,188.95/76,158.49 = 31,315.12/x
  3. Step 3: Cross multiply
    55,188.95x = 76,158.49 × 31,315.12
  4. Step 4: Simplify right side
    55,188.95x = 2,384,912,253.37
  5. Step 5: Solve for x
    x = 2,384,912,253.37/55,188.95
  6. Step 6: Final answer
    x = 43,213.58

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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.