Home / 77,892.18-116,855.55-36,316.50

Finding the Fourth Proportional to 77,892.18, 116,855.55 and 36,316.50

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Solution

The fourth proportional to 77,892.18, 116,855.55 and 36,316.50 is: 54,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,892.18 : 116,855.55 = 36,316.50 : x
  2. Step 2: Convert to fraction form
    77,892.18/116,855.55 = 36,316.50/x
  3. Step 3: Cross multiply
    77,892.18x = 116,855.55 × 36,316.50
  4. Step 4: Simplify right side
    77,892.18x = 4,243,784,581.58
  5. Step 5: Solve for x
    x = 4,243,784,581.58/77,892.18
  6. Step 6: Final answer
    x = 54,482.81

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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.