Home / 72,072.24-99,461.40-45,215.88

Finding the Fourth Proportional to 72,072.24, 99,461.40 and 45,215.88

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Solution

The fourth proportional to 72,072.24, 99,461.40 and 45,215.88 is: 62,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,072.24 : 99,461.40 = 45,215.88 : x
  2. Step 2: Convert to fraction form
    72,072.24/99,461.40 = 45,215.88/x
  3. Step 3: Cross multiply
    72,072.24x = 99,461.40 × 45,215.88
  4. Step 4: Simplify right side
    72,072.24x = 4,497,234,727.03
  5. Step 5: Solve for x
    x = 4,497,234,727.03/72,072.24
  6. Step 6: Final answer
    x = 62,398.99

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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.