Home / 45,555.28-68,329.56-21,879.76

Finding the Fourth Proportional to 45,555.28, 68,329.56 and 21,879.76

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Solution

The fourth proportional to 45,555.28, 68,329.56 and 21,879.76 is: 32,818.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,555.28 : 68,329.56 = 21,879.76 : x
  2. Step 2: Convert to fraction form
    45,555.28/68,329.56 = 21,879.76/x
  3. Step 3: Cross multiply
    45,555.28x = 68,329.56 × 21,879.76
  4. Step 4: Simplify right side
    45,555.28x = 1,495,034,373.71
  5. Step 5: Solve for x
    x = 1,495,034,373.71/45,555.28
  6. Step 6: Final answer
    x = 32,818.03

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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.