Home / 42,305.10-63,457.79-10,715.15

Finding the Fourth Proportional to 42,305.10, 63,457.79 and 10,715.15

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Solution

The fourth proportional to 42,305.10, 63,457.79 and 10,715.15 is: 16,072.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,305.10 : 63,457.79 = 10,715.15 : x
  2. Step 2: Convert to fraction form
    42,305.10/63,457.79 = 10,715.15/x
  3. Step 3: Cross multiply
    42,305.10x = 63,457.79 × 10,715.15
  4. Step 4: Simplify right side
    42,305.10x = 679,959,738.52
  5. Step 5: Solve for x
    x = 679,959,738.52/42,305.10
  6. Step 6: Final answer
    x = 16,072.76

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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.