Home / 45,833.74-68,711.40-20,864.86

Finding the Fourth Proportional to 45,833.74, 68,711.40 and 20,864.86

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Solution

The fourth proportional to 45,833.74, 68,711.40 and 20,864.86 is: 31,279.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,833.74 : 68,711.40 = 20,864.86 : x
  2. Step 2: Convert to fraction form
    45,833.74/68,711.40 = 20,864.86/x
  3. Step 3: Cross multiply
    45,833.74x = 68,711.40 × 20,864.86
  4. Step 4: Simplify right side
    45,833.74x = 1,433,653,741.40
  5. Step 5: Solve for x
    x = 1,433,653,741.40/45,833.74
  6. Step 6: Final answer
    x = 31,279.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.