Home / 48,979.20-73,468.80-48,518.40

Finding the Fourth Proportional to 48,979.20, 73,468.80 and 48,518.40

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Solution

The fourth proportional to 48,979.20, 73,468.80 and 48,518.40 is: 72,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,979.20 : 73,468.80 = 48,518.40 : x
  2. Step 2: Convert to fraction form
    48,979.20/73,468.80 = 48,518.40/x
  3. Step 3: Cross multiply
    48,979.20x = 73,468.80 × 48,518.40
  4. Step 4: Simplify right side
    48,979.20x = 3,564,588,625.92
  5. Step 5: Solve for x
    x = 3,564,588,625.92/48,979.20
  6. Step 6: Final answer
    x = 72,777.60

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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.