Home / 52,630.86-78,944.48-13,188.32

Finding the Fourth Proportional to 52,630.86, 78,944.48 and 13,188.32

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Solution

The fourth proportional to 52,630.86, 78,944.48 and 13,188.32 is: 19,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,630.86 : 78,944.48 = 13,188.32 : x
  2. Step 2: Convert to fraction form
    52,630.86/78,944.48 = 13,188.32/x
  3. Step 3: Cross multiply
    52,630.86x = 78,944.48 × 13,188.32
  4. Step 4: Simplify right side
    52,630.86x = 1,041,145,064.47
  5. Step 5: Solve for x
    x = 1,041,145,064.47/52,630.86
  6. Step 6: Final answer
    x = 19,782.03

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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.