Home / 55,211.08-76,191.65-31,338.15

Finding the Fourth Proportional to 55,211.08, 76,191.65 and 31,338.15

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Solution

The fourth proportional to 55,211.08, 76,191.65 and 31,338.15 is: 43,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.08 : 76,191.65 = 31,338.15 : x
  2. Step 2: Convert to fraction form
    55,211.08/76,191.65 = 31,338.15/x
  3. Step 3: Cross multiply
    55,211.08x = 76,191.65 × 31,338.15
  4. Step 4: Simplify right side
    55,211.08x = 2,387,705,356.45
  5. Step 5: Solve for x
    x = 2,387,705,356.45/55,211.08
  6. Step 6: Final answer
    x = 43,246.85

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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.