Home / 52,615.28-78,870.96-21,006.29

Finding the Fourth Proportional to 52,615.28, 78,870.96 and 21,006.29

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Solution

The fourth proportional to 52,615.28, 78,870.96 and 21,006.29 is: 31,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,615.28 : 78,870.96 = 21,006.29 : x
  2. Step 2: Convert to fraction form
    52,615.28/78,870.96 = 21,006.29/x
  3. Step 3: Cross multiply
    52,615.28x = 78,870.96 × 21,006.29
  4. Step 4: Simplify right side
    52,615.28x = 1,656,786,455.52
  5. Step 5: Solve for x
    x = 1,656,786,455.52/52,615.28
  6. Step 6: Final answer
    x = 31,488.70

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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.