Home / 54,280.70-81,421.05-47,714.30

Finding the Fourth Proportional to 54,280.70, 81,421.05 and 47,714.30

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Solution

The fourth proportional to 54,280.70, 81,421.05 and 47,714.30 is: 71,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,280.70 : 81,421.05 = 47,714.30 : x
  2. Step 2: Convert to fraction form
    54,280.70/81,421.05 = 47,714.30/x
  3. Step 3: Cross multiply
    54,280.70x = 81,421.05 × 47,714.30
  4. Step 4: Simplify right side
    54,280.70x = 3,884,948,406.02
  5. Step 5: Solve for x
    x = 3,884,948,406.02/54,280.70
  6. Step 6: Final answer
    x = 71,571.45

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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.