Home / 54,408.20-81,612.30-52,507.40

Finding the Fourth Proportional to 54,408.20, 81,612.30 and 52,507.40

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Solution

The fourth proportional to 54,408.20, 81,612.30 and 52,507.40 is: 78,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,408.20 : 81,612.30 = 52,507.40 : x
  2. Step 2: Convert to fraction form
    54,408.20/81,612.30 = 52,507.40/x
  3. Step 3: Cross multiply
    54,408.20x = 81,612.30 × 52,507.40
  4. Step 4: Simplify right side
    54,408.20x = 4,285,249,681.02
  5. Step 5: Solve for x
    x = 4,285,249,681.02/54,408.20
  6. Step 6: Final answer
    x = 78,761.10

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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.