Home / 52,830.36-79,245.63-13,390.53

Finding the Fourth Proportional to 52,830.36, 79,245.63 and 13,390.53

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Solution

The fourth proportional to 52,830.36, 79,245.63 and 13,390.53 is: 20,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,830.36 : 79,245.63 = 13,390.53 : x
  2. Step 2: Convert to fraction form
    52,830.36/79,245.63 = 13,390.53/x
  3. Step 3: Cross multiply
    52,830.36x = 79,245.63 × 13,390.53
  4. Step 4: Simplify right side
    52,830.36x = 1,061,140,985.88
  5. Step 5: Solve for x
    x = 1,061,140,985.88/52,830.36
  6. Step 6: Final answer
    x = 20,085.82

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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.