Home / 47,873.78-71,810.64-12,812.52

Finding the Fourth Proportional to 47,873.78, 71,810.64 and 12,812.52

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Solution

The fourth proportional to 47,873.78, 71,810.64 and 12,812.52 is: 19,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,873.78 : 71,810.64 = 12,812.52 : x
  2. Step 2: Convert to fraction form
    47,873.78/71,810.64 = 12,812.52/x
  3. Step 3: Cross multiply
    47,873.78x = 71,810.64 × 12,812.52
  4. Step 4: Simplify right side
    47,873.78x = 920,075,261.21
  5. Step 5: Solve for x
    x = 920,075,261.21/47,873.78
  6. Step 6: Final answer
    x = 19,218.77

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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.