Home / 77,623.80-107,089.74-48,934.02

Finding the Fourth Proportional to 77,623.80, 107,089.74 and 48,934.02

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Solution

The fourth proportional to 77,623.80, 107,089.74 and 48,934.02 is: 67,509.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,623.80 : 107,089.74 = 48,934.02 : x
  2. Step 2: Convert to fraction form
    77,623.80/107,089.74 = 48,934.02/x
  3. Step 3: Cross multiply
    77,623.80x = 107,089.74 × 48,934.02
  4. Step 4: Simplify right side
    77,623.80x = 5,240,331,478.95
  5. Step 5: Solve for x
    x = 5,240,331,478.95/77,623.80
  6. Step 6: Final answer
    x = 67,509.34

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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.