Home / 77,631.23-116,363.79-40,153.57

Finding the Fourth Proportional to 77,631.23, 116,363.79 and 40,153.57

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Solution

The fourth proportional to 77,631.23, 116,363.79 and 40,153.57 is: 60,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,631.23 : 116,363.79 = 40,153.57 : x
  2. Step 2: Convert to fraction form
    77,631.23/116,363.79 = 40,153.57/x
  3. Step 3: Cross multiply
    77,631.23x = 116,363.79 × 40,153.57
  4. Step 4: Simplify right side
    77,631.23x = 4,672,421,587.23
  5. Step 5: Solve for x
    x = 4,672,421,587.23/77,631.23
  6. Step 6: Final answer
    x = 60,187.40

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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.