Home / 60,340.32-90,511.62-20,898.72

Finding the Fourth Proportional to 60,340.32, 90,511.62 and 20,898.72

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Solution

The fourth proportional to 60,340.32, 90,511.62 and 20,898.72 is: 31,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,340.32 : 90,511.62 = 20,898.72 : x
  2. Step 2: Convert to fraction form
    60,340.32/90,511.62 = 20,898.72/x
  3. Step 3: Cross multiply
    60,340.32x = 90,511.62 × 20,898.72
  4. Step 4: Simplify right side
    60,340.32x = 1,891,577,003.13
  5. Step 5: Solve for x
    x = 1,891,577,003.13/60,340.32
  6. Step 6: Final answer
    x = 31,348.47

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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.