Home / 52,611.10-78,849.45-21,411.10

Finding the Fourth Proportional to 52,611.10, 78,849.45 and 21,411.10

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Solution

The fourth proportional to 52,611.10, 78,849.45 and 21,411.10 is: 32,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,611.10 : 78,849.45 = 21,411.10 : x
  2. Step 2: Convert to fraction form
    52,611.10/78,849.45 = 21,411.10/x
  3. Step 3: Cross multiply
    52,611.10x = 78,849.45 × 21,411.10
  4. Step 4: Simplify right side
    52,611.10x = 1,688,253,458.90
  5. Step 5: Solve for x
    x = 1,688,253,458.90/52,611.10
  6. Step 6: Final answer
    x = 32,089.30

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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.