Home / 86,459.47-129,678.27-23,284.64

Finding the Fourth Proportional to 86,459.47, 129,678.27 and 23,284.64

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Solution

The fourth proportional to 86,459.47, 129,678.27 and 23,284.64 is: 34,924.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,459.47 : 129,678.27 = 23,284.64 : x
  2. Step 2: Convert to fraction form
    86,459.47/129,678.27 = 23,284.64/x
  3. Step 3: Cross multiply
    86,459.47x = 129,678.27 × 23,284.64
  4. Step 4: Simplify right side
    86,459.47x = 3,019,511,832.77
  5. Step 5: Solve for x
    x = 3,019,511,832.77/86,459.47
  6. Step 6: Final answer
    x = 34,924.02

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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.