Home / 53,979.94-80,979.44-18,432.93

Finding the Fourth Proportional to 53,979.94, 80,979.44 and 18,432.93

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Solution

The fourth proportional to 53,979.94, 80,979.44 and 18,432.93 is: 27,652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,979.94 : 80,979.44 = 18,432.93 : x
  2. Step 2: Convert to fraction form
    53,979.94/80,979.44 = 18,432.93/x
  3. Step 3: Cross multiply
    53,979.94x = 80,979.44 × 18,432.93
  4. Step 4: Simplify right side
    53,979.94x = 1,492,688,702.74
  5. Step 5: Solve for x
    x = 1,492,688,702.74/53,979.94
  6. Step 6: Final answer
    x = 27,652.65

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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.