Home / 76,866.12-115,284.60-24,271.20

Finding the Fourth Proportional to 76,866.12, 115,284.60 and 24,271.20

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Solution

The fourth proportional to 76,866.12, 115,284.60 and 24,271.20 is: 36,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,866.12 : 115,284.60 = 24,271.20 : x
  2. Step 2: Convert to fraction form
    76,866.12/115,284.60 = 24,271.20/x
  3. Step 3: Cross multiply
    76,866.12x = 115,284.60 × 24,271.20
  4. Step 4: Simplify right side
    76,866.12x = 2,798,095,583.52
  5. Step 5: Solve for x
    x = 2,798,095,583.52/76,866.12
  6. Step 6: Final answer
    x = 36,402.20

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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.