Home / 47,129.20-70,641.96-19,412.08

Finding the Fourth Proportional to 47,129.20, 70,641.96 and 19,412.08

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Solution

The fourth proportional to 47,129.20, 70,641.96 and 19,412.08 is: 29,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,129.20 : 70,641.96 = 19,412.08 : x
  2. Step 2: Convert to fraction form
    47,129.20/70,641.96 = 19,412.08/x
  3. Step 3: Cross multiply
    47,129.20x = 70,641.96 × 19,412.08
  4. Step 4: Simplify right side
    47,129.20x = 1,371,307,378.88
  5. Step 5: Solve for x
    x = 1,371,307,378.88/47,129.20
  6. Step 6: Final answer
    x = 29,096.77

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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.