Home / 86,756.11-130,153.32-36,878.83

Finding the Fourth Proportional to 86,756.11, 130,153.32 and 36,878.83

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Solution

The fourth proportional to 86,756.11, 130,153.32 and 36,878.83 is: 55,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,756.11 : 130,153.32 = 36,878.83 : x
  2. Step 2: Convert to fraction form
    86,756.11/130,153.32 = 36,878.83/x
  3. Step 3: Cross multiply
    86,756.11x = 130,153.32 × 36,878.83
  4. Step 4: Simplify right side
    86,756.11x = 4,799,902,162.22
  5. Step 5: Solve for x
    x = 4,799,902,162.22/86,756.11
  6. Step 6: Final answer
    x = 55,326.39

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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.