Home / 55,107.72-76,036.14-31,228.92

Finding the Fourth Proportional to 55,107.72, 76,036.14 and 31,228.92

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Solution

The fourth proportional to 55,107.72, 76,036.14 and 31,228.92 is: 43,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,107.72 : 76,036.14 = 31,228.92 : x
  2. Step 2: Convert to fraction form
    55,107.72/76,036.14 = 31,228.92/x
  3. Step 3: Cross multiply
    55,107.72x = 76,036.14 × 31,228.92
  4. Step 4: Simplify right side
    55,107.72x = 2,374,526,533.17
  5. Step 5: Solve for x
    x = 2,374,526,533.17/55,107.72
  6. Step 6: Final answer
    x = 43,088.82

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Double scale
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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.