Home / 50,681.86-69,860.45-39,909.65

Finding the Fourth Proportional to 50,681.86, 69,860.45 and 39,909.65

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Solution

The fourth proportional to 50,681.86, 69,860.45 and 39,909.65 is: 55,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,681.86 : 69,860.45 = 39,909.65 : x
  2. Step 2: Convert to fraction form
    50,681.86/69,860.45 = 39,909.65/x
  3. Step 3: Cross multiply
    50,681.86x = 69,860.45 × 39,909.65
  4. Step 4: Simplify right side
    50,681.86x = 2,788,105,746.57
  5. Step 5: Solve for x
    x = 2,788,105,746.57/50,681.86
  6. Step 6: Final answer
    x = 55,011.91

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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.