Home / 53,384.10-80,085.36-21,811.32

Finding the Fourth Proportional to 53,384.10, 80,085.36 and 21,811.32

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Solution

The fourth proportional to 53,384.10, 80,085.36 and 21,811.32 is: 32,720.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,384.10 : 80,085.36 = 21,811.32 : x
  2. Step 2: Convert to fraction form
    53,384.10/80,085.36 = 21,811.32/x
  3. Step 3: Cross multiply
    53,384.10x = 80,085.36 × 21,811.32
  4. Step 4: Simplify right side
    53,384.10x = 1,746,767,414.28
  5. Step 5: Solve for x
    x = 1,746,767,414.28/53,384.10
  6. Step 6: Final answer
    x = 32,720.74

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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.