Home / 55,191.92-76,158.60-31,312.40

Finding the Fourth Proportional to 55,191.92, 76,158.60 and 31,312.40

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Solution

The fourth proportional to 55,191.92, 76,158.60 and 31,312.40 is: 43,207.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,191.92 : 76,158.60 = 31,312.40 : x
  2. Step 2: Convert to fraction form
    55,191.92/76,158.60 = 31,312.40/x
  3. Step 3: Cross multiply
    55,191.92x = 76,158.60 × 31,312.40
  4. Step 4: Simplify right side
    55,191.92x = 2,384,708,546.64
  5. Step 5: Solve for x
    x = 2,384,708,546.64/55,191.92
  6. Step 6: Final answer
    x = 43,207.57

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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.