Home / 53,320.80-79,981.20-52,543.20

Finding the Fourth Proportional to 53,320.80, 79,981.20 and 52,543.20

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Solution

The fourth proportional to 53,320.80, 79,981.20 and 52,543.20 is: 78,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,320.80 : 79,981.20 = 52,543.20 : x
  2. Step 2: Convert to fraction form
    53,320.80/79,981.20 = 52,543.20/x
  3. Step 3: Cross multiply
    53,320.80x = 79,981.20 × 52,543.20
  4. Step 4: Simplify right side
    53,320.80x = 4,202,468,187.84
  5. Step 5: Solve for x
    x = 4,202,468,187.84/53,320.80
  6. Step 6: Final answer
    x = 78,814.80

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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.