Home / 66,457.30-99,668.94-19,699.24

Finding the Fourth Proportional to 66,457.30, 99,668.94 and 19,699.24

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Solution

The fourth proportional to 66,457.30, 99,668.94 and 19,699.24 is: 29,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,457.30 : 99,668.94 = 19,699.24 : x
  2. Step 2: Convert to fraction form
    66,457.30/99,668.94 = 19,699.24/x
  3. Step 3: Cross multiply
    66,457.30x = 99,668.94 × 19,699.24
  4. Step 4: Simplify right side
    66,457.30x = 1,963,402,369.61
  5. Step 5: Solve for x
    x = 1,963,402,369.61/66,457.30
  6. Step 6: Final answer
    x = 29,543.82

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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.