Home / 53,381.10-80,080.86-21,808.32

Finding the Fourth Proportional to 53,381.10, 80,080.86 and 21,808.32

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Solution

The fourth proportional to 53,381.10, 80,080.86 and 21,808.32 is: 32,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,381.10 : 80,080.86 = 21,808.32 : x
  2. Step 2: Convert to fraction form
    53,381.10/80,080.86 = 21,808.32/x
  3. Step 3: Cross multiply
    53,381.10x = 80,080.86 × 21,808.32
  4. Step 4: Simplify right side
    53,381.10x = 1,746,429,020.76
  5. Step 5: Solve for x
    x = 1,746,429,020.76/53,381.10
  6. Step 6: Final answer
    x = 32,716.24

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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.