Home / 92,881.38-128,215.55-62,707.58

Finding the Fourth Proportional to 92,881.38, 128,215.55 and 62,707.58

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Solution

The fourth proportional to 92,881.38, 128,215.55 and 62,707.58 is: 86,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,881.38 : 128,215.55 = 62,707.58 : x
  2. Step 2: Convert to fraction form
    92,881.38/128,215.55 = 62,707.58/x
  3. Step 3: Cross multiply
    92,881.38x = 128,215.55 × 62,707.58
  4. Step 4: Simplify right side
    92,881.38x = 8,040,085,904.25
  5. Step 5: Solve for x
    x = 8,040,085,904.25/92,881.38
  6. Step 6: Final answer
    x = 86,562.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.