Home / 52,482.20-78,723.30-21,339.80

Finding the Fourth Proportional to 52,482.20, 78,723.30 and 21,339.80

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Solution

The fourth proportional to 52,482.20, 78,723.30 and 21,339.80 is: 32,009.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,482.20 : 78,723.30 = 21,339.80 : x
  2. Step 2: Convert to fraction form
    52,482.20/78,723.30 = 21,339.80/x
  3. Step 3: Cross multiply
    52,482.20x = 78,723.30 × 21,339.80
  4. Step 4: Simplify right side
    52,482.20x = 1,679,939,477.34
  5. Step 5: Solve for x
    x = 1,679,939,477.34/52,482.20
  6. Step 6: Final answer
    x = 32,009.70

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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.