Home / 90,398.23-124,741.18-50,108.57

Finding the Fourth Proportional to 90,398.23, 124,741.18 and 50,108.57

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Solution

The fourth proportional to 90,398.23, 124,741.18 and 50,108.57 is: 69,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,398.23 : 124,741.18 = 50,108.57 : x
  2. Step 2: Convert to fraction form
    90,398.23/124,741.18 = 50,108.57/x
  3. Step 3: Cross multiply
    90,398.23x = 124,741.18 × 50,108.57
  4. Step 4: Simplify right side
    90,398.23x = 6,250,601,774.76
  5. Step 5: Solve for x
    x = 6,250,601,774.76/90,398.23
  6. Step 6: Final answer
    x = 69,145.18

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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.