Home / 66,014.34-98,970.47-21,613.38

Finding the Fourth Proportional to 66,014.34, 98,970.47 and 21,613.38

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Solution

The fourth proportional to 66,014.34, 98,970.47 and 21,613.38 is: 32,403.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,014.34 : 98,970.47 = 21,613.38 : x
  2. Step 2: Convert to fraction form
    66,014.34/98,970.47 = 21,613.38/x
  3. Step 3: Cross multiply
    66,014.34x = 98,970.47 × 21,613.38
  4. Step 4: Simplify right side
    66,014.34x = 2,139,086,376.89
  5. Step 5: Solve for x
    x = 2,139,086,376.89/66,014.34
  6. Step 6: Final answer
    x = 32,403.36

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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.