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Finding the Fourth Proportional to 60,005.80, 89,879.10 and 53,439.40

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Solution

The fourth proportional to 60,005.80, 89,879.10 and 53,439.40 is: 80,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,005.80 : 89,879.10 = 53,439.40 : x
  2. Step 2: Convert to fraction form
    60,005.80/89,879.10 = 53,439.40/x
  3. Step 3: Cross multiply
    60,005.80x = 89,879.10 × 53,439.40
  4. Step 4: Simplify right side
    60,005.80x = 4,803,085,176.54
  5. Step 5: Solve for x
    x = 4,803,085,176.54/60,005.80
  6. Step 6: Final answer
    x = 80,043.68

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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.