Home / 91,479.86-137,200.59-25,800.50

Finding the Fourth Proportional to 91,479.86, 137,200.59 and 25,800.50

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Solution

The fourth proportional to 91,479.86, 137,200.59 and 25,800.50 is: 38,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,479.86 : 137,200.59 = 25,800.50 : x
  2. Step 2: Convert to fraction form
    91,479.86/137,200.59 = 25,800.50/x
  3. Step 3: Cross multiply
    91,479.86x = 137,200.59 × 25,800.50
  4. Step 4: Simplify right side
    91,479.86x = 3,539,843,822.30
  5. Step 5: Solve for x
    x = 3,539,843,822.30/91,479.86
  6. Step 6: Final answer
    x = 38,695.33

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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.