Home / 76,389.35-114,587.13-36,387.77

Finding the Fourth Proportional to 76,389.35, 114,587.13 and 36,387.77

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Solution

The fourth proportional to 76,389.35, 114,587.13 and 36,387.77 is: 54,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,389.35 : 114,587.13 = 36,387.77 : x
  2. Step 2: Convert to fraction form
    76,389.35/114,587.13 = 36,387.77/x
  3. Step 3: Cross multiply
    76,389.35x = 114,587.13 × 36,387.77
  4. Step 4: Simplify right side
    76,389.35x = 4,169,569,376.53
  5. Step 5: Solve for x
    x = 4,169,569,376.53/76,389.35
  6. Step 6: Final answer
    x = 54,583.13

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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.