Home / 56,358.24-84,538.32-21,314.40

Finding the Fourth Proportional to 56,358.24, 84,538.32 and 21,314.40

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Solution

The fourth proportional to 56,358.24, 84,538.32 and 21,314.40 is: 31,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.24 : 84,538.32 = 21,314.40 : x
  2. Step 2: Convert to fraction form
    56,358.24/84,538.32 = 21,314.40/x
  3. Step 3: Cross multiply
    56,358.24x = 84,538.32 × 21,314.40
  4. Step 4: Simplify right side
    56,358.24x = 1,801,883,567.81
  5. Step 5: Solve for x
    x = 1,801,883,567.81/56,358.24
  6. Step 6: Final answer
    x = 31,971.96

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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.