Home / 63,675.17-87,872.15-39,815.81

Finding the Fourth Proportional to 63,675.17, 87,872.15 and 39,815.81

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Solution

The fourth proportional to 63,675.17, 87,872.15 and 39,815.81 is: 54,946.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,675.17 : 87,872.15 = 39,815.81 : x
  2. Step 2: Convert to fraction form
    63,675.17/87,872.15 = 39,815.81/x
  3. Step 3: Cross multiply
    63,675.17x = 87,872.15 × 39,815.81
  4. Step 4: Simplify right side
    63,675.17x = 3,498,700,828.69
  5. Step 5: Solve for x
    x = 3,498,700,828.69/63,675.17
  6. Step 6: Final answer
    x = 54,946.08

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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.