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Finding the Fourth Proportional to 54,357.57, 81,492.48 and 21,060.63

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Solution

The fourth proportional to 54,357.57, 81,492.48 and 21,060.63 is: 31,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,357.57 : 81,492.48 = 21,060.63 : x
  2. Step 2: Convert to fraction form
    54,357.57/81,492.48 = 21,060.63/x
  3. Step 3: Cross multiply
    54,357.57x = 81,492.48 × 21,060.63
  4. Step 4: Simplify right side
    54,357.57x = 1,716,282,969.06
  5. Step 5: Solve for x
    x = 1,716,282,969.06/54,357.57
  6. Step 6: Final answer
    x = 31,573.95

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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.