Home / 42,939.60-64,423.44-22,148.16

Finding the Fourth Proportional to 42,939.60, 64,423.44 and 22,148.16

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Solution

The fourth proportional to 42,939.60, 64,423.44 and 22,148.16 is: 33,229.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,939.60 : 64,423.44 = 22,148.16 : x
  2. Step 2: Convert to fraction form
    42,939.60/64,423.44 = 22,148.16/x
  3. Step 3: Cross multiply
    42,939.60x = 64,423.44 × 22,148.16
  4. Step 4: Simplify right side
    42,939.60x = 1,426,860,656.87
  5. Step 5: Solve for x
    x = 1,426,860,656.87/42,939.60
  6. Step 6: Final answer
    x = 33,229.48

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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.