Home / 55,900.08-83,824.20-20,830.32

Finding the Fourth Proportional to 55,900.08, 83,824.20 and 20,830.32

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Solution

The fourth proportional to 55,900.08, 83,824.20 and 20,830.32 is: 31,235.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,900.08 : 83,824.20 = 20,830.32 : x
  2. Step 2: Convert to fraction form
    55,900.08/83,824.20 = 20,830.32/x
  3. Step 3: Cross multiply
    55,900.08x = 83,824.20 × 20,830.32
  4. Step 4: Simplify right side
    55,900.08x = 1,746,084,909.74
  5. Step 5: Solve for x
    x = 1,746,084,909.74/55,900.08
  6. Step 6: Final answer
    x = 31,235.82

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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.