Home / 58,585.12-87,859.50-21,140.34

Finding the Fourth Proportional to 58,585.12, 87,859.50 and 21,140.34

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Solution

The fourth proportional to 58,585.12, 87,859.50 and 21,140.34 is: 31,703.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,585.12 : 87,859.50 = 21,140.34 : x
  2. Step 2: Convert to fraction form
    58,585.12/87,859.50 = 21,140.34/x
  3. Step 3: Cross multiply
    58,585.12x = 87,859.50 × 21,140.34
  4. Step 4: Simplify right side
    58,585.12x = 1,857,379,702.23
  5. Step 5: Solve for x
    x = 1,857,379,702.23/58,585.12
  6. Step 6: Final answer
    x = 31,703.95

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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.