Home / 61,440.78-92,177.30-19,319.16

Finding the Fourth Proportional to 61,440.78, 92,177.30 and 19,319.16

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Solution

The fourth proportional to 61,440.78, 92,177.30 and 19,319.16 is: 28,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,440.78 : 92,177.30 = 19,319.16 : x
  2. Step 2: Convert to fraction form
    61,440.78/92,177.30 = 19,319.16/x
  3. Step 3: Cross multiply
    61,440.78x = 92,177.30 × 19,319.16
  4. Step 4: Simplify right side
    61,440.78x = 1,780,788,007.07
  5. Step 5: Solve for x
    x = 1,780,788,007.07/61,440.78
  6. Step 6: Final answer
    x = 28,983.81

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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.