Home / 52,282.90-78,424.61-12,840.02

Finding the Fourth Proportional to 52,282.90, 78,424.61 and 12,840.02

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Solution

The fourth proportional to 52,282.90, 78,424.61 and 12,840.02 is: 19,260.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,282.90 : 78,424.61 = 12,840.02 : x
  2. Step 2: Convert to fraction form
    52,282.90/78,424.61 = 12,840.02/x
  3. Step 3: Cross multiply
    52,282.90x = 78,424.61 × 12,840.02
  4. Step 4: Simplify right side
    52,282.90x = 1,006,973,496.69
  5. Step 5: Solve for x
    x = 1,006,973,496.69/52,282.90
  6. Step 6: Final answer
    x = 19,260.09

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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.