Home / 54,281.20-81,421.80-48,924.40

Finding the Fourth Proportional to 54,281.20, 81,421.80 and 48,924.40

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Solution

The fourth proportional to 54,281.20, 81,421.80 and 48,924.40 is: 73,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,281.20 : 81,421.80 = 48,924.40 : x
  2. Step 2: Convert to fraction form
    54,281.20/81,421.80 = 48,924.40/x
  3. Step 3: Cross multiply
    54,281.20x = 81,421.80 × 48,924.40
  4. Step 4: Simplify right side
    54,281.20x = 3,983,512,711.92
  5. Step 5: Solve for x
    x = 3,983,512,711.92/54,281.20
  6. Step 6: Final answer
    x = 73,386.60

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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.