Home / 52,460.40-78,684.08-21,265.68

Finding the Fourth Proportional to 52,460.40, 78,684.08 and 21,265.68

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Solution

The fourth proportional to 52,460.40, 78,684.08 and 21,265.68 is: 31,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,460.40 : 78,684.08 = 21,265.68 : x
  2. Step 2: Convert to fraction form
    52,460.40/78,684.08 = 21,265.68/x
  3. Step 3: Cross multiply
    52,460.40x = 78,684.08 × 21,265.68
  4. Step 4: Simplify right side
    52,460.40x = 1,673,270,466.37
  5. Step 5: Solve for x
    x = 1,673,270,466.37/52,460.40
  6. Step 6: Final answer
    x = 31,895.88

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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.