Home / 90,866.11-125,398.91-50,577.32

Finding the Fourth Proportional to 90,866.11, 125,398.91 and 50,577.32

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Solution

The fourth proportional to 90,866.11, 125,398.91 and 50,577.32 is: 69,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,866.11 : 125,398.91 = 50,577.32 : x
  2. Step 2: Convert to fraction form
    90,866.11/125,398.91 = 50,577.32/x
  3. Step 3: Cross multiply
    90,866.11x = 125,398.91 × 50,577.32
  4. Step 4: Simplify right side
    90,866.11x = 6,342,340,298.17
  5. Step 5: Solve for x
    x = 6,342,340,298.17/90,866.11
  6. Step 6: Final answer
    x = 69,798.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.