Home / 77,416.60-115,952.10-59,747.80

Finding the Fourth Proportional to 77,416.60, 115,952.10 and 59,747.80

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Solution

The fourth proportional to 77,416.60, 115,952.10 and 59,747.80 is: 89,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,416.60 : 115,952.10 = 59,747.80 : x
  2. Step 2: Convert to fraction form
    77,416.60/115,952.10 = 59,747.80/x
  3. Step 3: Cross multiply
    77,416.60x = 115,952.10 × 59,747.80
  4. Step 4: Simplify right side
    77,416.60x = 6,927,882,880.38
  5. Step 5: Solve for x
    x = 6,927,882,880.38/77,416.60
  6. Step 6: Final answer
    x = 89,488.34

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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.