Home / 47,815.11-66,032.19-39,400.62

Finding the Fourth Proportional to 47,815.11, 66,032.19 and 39,400.62

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Solution

The fourth proportional to 47,815.11, 66,032.19 and 39,400.62 is: 54,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,815.11 : 66,032.19 = 39,400.62 : x
  2. Step 2: Convert to fraction form
    47,815.11/66,032.19 = 39,400.62/x
  3. Step 3: Cross multiply
    47,815.11x = 66,032.19 × 39,400.62
  4. Step 4: Simplify right side
    47,815.11x = 2,601,709,225.96
  5. Step 5: Solve for x
    x = 2,601,709,225.96/47,815.11
  6. Step 6: Final answer
    x = 54,411.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.