Home / 42,733.10-64,096.55-18,719.84

Finding the Fourth Proportional to 42,733.10, 64,096.55 and 18,719.84

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Solution

The fourth proportional to 42,733.10, 64,096.55 and 18,719.84 is: 28,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,733.10 : 64,096.55 = 18,719.84 : x
  2. Step 2: Convert to fraction form
    42,733.10/64,096.55 = 18,719.84/x
  3. Step 3: Cross multiply
    42,733.10x = 64,096.55 × 18,719.84
  4. Step 4: Simplify right side
    42,733.10x = 1,199,876,746.47
  5. Step 5: Solve for x
    x = 1,199,876,746.47/42,733.10
  6. Step 6: Final answer
    x = 28,078.40

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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.