Home / 92,020.80-138,032.52-60,631.86

Finding the Fourth Proportional to 92,020.80, 138,032.52 and 60,631.86

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Solution

The fourth proportional to 92,020.80, 138,032.52 and 60,631.86 is: 90,948.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,020.80 : 138,032.52 = 60,631.86 : x
  2. Step 2: Convert to fraction form
    92,020.80/138,032.52 = 60,631.86/x
  3. Step 3: Cross multiply
    92,020.80x = 138,032.52 × 60,631.86
  4. Step 4: Simplify right side
    92,020.80x = 8,369,168,428.09
  5. Step 5: Solve for x
    x = 8,369,168,428.09/92,020.80
  6. Step 6: Final answer
    x = 90,948.66

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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.