Home / 58,572.18-87,859.35-21,135.06

Finding the Fourth Proportional to 58,572.18, 87,859.35 and 21,135.06

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Solution

The fourth proportional to 58,572.18, 87,859.35 and 21,135.06 is: 31,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,572.18 : 87,859.35 = 21,135.06 : x
  2. Step 2: Convert to fraction form
    58,572.18/87,859.35 = 21,135.06/x
  3. Step 3: Cross multiply
    58,572.18x = 87,859.35 × 21,135.06
  4. Step 4: Simplify right side
    58,572.18x = 1,856,912,633.81
  5. Step 5: Solve for x
    x = 1,856,912,633.81/58,572.18
  6. Step 6: Final answer
    x = 31,702.98

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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.