Home / 54,528.21-81,394.47-47,885.13

Finding the Fourth Proportional to 54,528.21, 81,394.47 and 47,885.13

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Solution

The fourth proportional to 54,528.21, 81,394.47 and 47,885.13 is: 71,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,528.21 : 81,394.47 = 47,885.13 : x
  2. Step 2: Convert to fraction form
    54,528.21/81,394.47 = 47,885.13/x
  3. Step 3: Cross multiply
    54,528.21x = 81,394.47 × 47,885.13
  4. Step 4: Simplify right side
    54,528.21x = 3,897,584,777.23
  5. Step 5: Solve for x
    x = 3,897,584,777.23/54,528.21
  6. Step 6: Final answer
    x = 71,478.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.