Home / 58,071.16-87,106.42-21,135.16

Finding the Fourth Proportional to 58,071.16, 87,106.42 and 21,135.16

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Solution

The fourth proportional to 58,071.16, 87,106.42 and 21,135.16 is: 31,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,071.16 : 87,106.42 = 21,135.16 : x
  2. Step 2: Convert to fraction form
    58,071.16/87,106.42 = 21,135.16/x
  3. Step 3: Cross multiply
    58,071.16x = 87,106.42 × 21,135.16
  4. Step 4: Simplify right side
    58,071.16x = 1,841,008,123.73
  5. Step 5: Solve for x
    x = 1,841,008,123.73/58,071.16
  6. Step 6: Final answer
    x = 31,702.62

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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.