Home / 47,890.02-71,859.32-19,830.80

Finding the Fourth Proportional to 47,890.02, 71,859.32 and 19,830.80

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Solution

The fourth proportional to 47,890.02, 71,859.32 and 19,830.80 is: 29,756.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,890.02 : 71,859.32 = 19,830.80 : x
  2. Step 2: Convert to fraction form
    47,890.02/71,859.32 = 19,830.80/x
  3. Step 3: Cross multiply
    47,890.02x = 71,859.32 × 19,830.80
  4. Step 4: Simplify right side
    47,890.02x = 1,425,027,803.06
  5. Step 5: Solve for x
    x = 1,425,027,803.06/47,890.02
  6. Step 6: Final answer
    x = 29,756.26

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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.