Home / 52,615.03-78,870.59-21,006.05

Finding the Fourth Proportional to 52,615.03, 78,870.59 and 21,006.05

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Solution

The fourth proportional to 52,615.03, 78,870.59 and 21,006.05 is: 31,488.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,615.03 : 78,870.59 = 21,006.05 : x
  2. Step 2: Convert to fraction form
    52,615.03/78,870.59 = 21,006.05/x
  3. Step 3: Cross multiply
    52,615.03x = 78,870.59 × 21,006.05
  4. Step 4: Simplify right side
    52,615.03x = 1,656,759,057.69
  5. Step 5: Solve for x
    x = 1,656,759,057.69/52,615.03
  6. Step 6: Final answer
    x = 31,488.33

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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.