Home / 70,005.12-104,988.96-47,814.72

Finding the Fourth Proportional to 70,005.12, 104,988.96 and 47,814.72

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Solution

The fourth proportional to 70,005.12, 104,988.96 and 47,814.72 is: 71,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,005.12 : 104,988.96 = 47,814.72 : x
  2. Step 2: Convert to fraction form
    70,005.12/104,988.96 = 47,814.72/x
  3. Step 3: Cross multiply
    70,005.12x = 104,988.96 × 47,814.72
  4. Step 4: Simplify right side
    70,005.12x = 5,020,017,725.49
  5. Step 5: Solve for x
    x = 5,020,017,725.49/70,005.12
  6. Step 6: Final answer
    x = 71,709.29

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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.