Home / 90,643.44-125,082.14-50,356.46

Finding the Fourth Proportional to 90,643.44, 125,082.14 and 50,356.46

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Solution

The fourth proportional to 90,643.44, 125,082.14 and 50,356.46 is: 69,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,643.44 : 125,082.14 = 50,356.46 : x
  2. Step 2: Convert to fraction form
    90,643.44/125,082.14 = 50,356.46/x
  3. Step 3: Cross multiply
    90,643.44x = 125,082.14 × 50,356.46
  4. Step 4: Simplify right side
    90,643.44x = 6,298,693,779.62
  5. Step 5: Solve for x
    x = 6,298,693,779.62/90,643.44
  6. Step 6: Final answer
    x = 69,488.69

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1.5x scale

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.