Home / 53,680.60-74,148.94-40,855.86

Finding the Fourth Proportional to 53,680.60, 74,148.94 and 40,855.86

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Solution

The fourth proportional to 53,680.60, 74,148.94 and 40,855.86 is: 56,434.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,680.60 : 74,148.94 = 40,855.86 : x
  2. Step 2: Convert to fraction form
    53,680.60/74,148.94 = 40,855.86/x
  3. Step 3: Cross multiply
    53,680.60x = 74,148.94 × 40,855.86
  4. Step 4: Simplify right side
    53,680.60x = 3,029,418,711.79
  5. Step 5: Solve for x
    x = 3,029,418,711.79/53,680.60
  6. Step 6: Final answer
    x = 56,434.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.