Home / 66,045.89-98,992.53-30,432.76

Finding the Fourth Proportional to 66,045.89, 98,992.53 and 30,432.76

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Solution

The fourth proportional to 66,045.89, 98,992.53 and 30,432.76 is: 45,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,045.89 : 98,992.53 = 30,432.76 : x
  2. Step 2: Convert to fraction form
    66,045.89/98,992.53 = 30,432.76/x
  3. Step 3: Cross multiply
    66,045.89x = 98,992.53 × 30,432.76
  4. Step 4: Simplify right side
    66,045.89x = 3,012,615,907.28
  5. Step 5: Solve for x
    x = 3,012,615,907.28/66,045.89
  6. Step 6: Final answer
    x = 45,613.98

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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.