Home / 63,669.41-87,864.30-39,809.91

Finding the Fourth Proportional to 63,669.41, 87,864.30 and 39,809.91

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Solution

The fourth proportional to 63,669.41, 87,864.30 and 39,809.91 is: 54,938.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,669.41 : 87,864.30 = 39,809.91 : x
  2. Step 2: Convert to fraction form
    63,669.41/87,864.30 = 39,809.91/x
  3. Step 3: Cross multiply
    63,669.41x = 87,864.30 × 39,809.91
  4. Step 4: Simplify right side
    63,669.41x = 3,497,869,875.21
  5. Step 5: Solve for x
    x = 3,497,869,875.21/63,669.41
  6. Step 6: Final answer
    x = 54,938.00

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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.