Home / 58,590.29-87,864.23-21,140.28

Finding the Fourth Proportional to 58,590.29, 87,864.23 and 21,140.28

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Solution

The fourth proportional to 58,590.29, 87,864.23 and 21,140.28 is: 31,702.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,590.29 : 87,864.23 = 21,140.28 : x
  2. Step 2: Convert to fraction form
    58,590.29/87,864.23 = 21,140.28/x
  3. Step 3: Cross multiply
    58,590.29x = 87,864.23 × 21,140.28
  4. Step 4: Simplify right side
    58,590.29x = 1,857,474,318.48
  5. Step 5: Solve for x
    x = 1,857,474,318.48/58,590.29
  6. Step 6: Final answer
    x = 31,702.77

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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.