Home / 52,569.21-78,864.20-19,289.55

Finding the Fourth Proportional to 52,569.21, 78,864.20 and 19,289.55

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Solution

The fourth proportional to 52,569.21, 78,864.20 and 19,289.55 is: 28,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,569.21 : 78,864.20 = 19,289.55 : x
  2. Step 2: Convert to fraction form
    52,569.21/78,864.20 = 19,289.55/x
  3. Step 3: Cross multiply
    52,569.21x = 78,864.20 × 19,289.55
  4. Step 4: Simplify right side
    52,569.21x = 1,521,254,832.66
  5. Step 5: Solve for x
    x = 1,521,254,832.66/52,569.21
  6. Step 6: Final answer
    x = 28,938.13

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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.