Home / 42,763.96-64,134.70-12,771.08

Finding the Fourth Proportional to 42,763.96, 64,134.70 and 12,771.08

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Solution

The fourth proportional to 42,763.96, 64,134.70 and 12,771.08 is: 19,153.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,763.96 : 64,134.70 = 12,771.08 : x
  2. Step 2: Convert to fraction form
    42,763.96/64,134.70 = 12,771.08/x
  3. Step 3: Cross multiply
    42,763.96x = 64,134.70 × 12,771.08
  4. Step 4: Simplify right side
    42,763.96x = 819,069,384.48
  5. Step 5: Solve for x
    x = 819,069,384.48/42,763.96
  6. Step 6: Final answer
    x = 19,153.26

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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.