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Finding the Fourth Proportional to 90,445, 124,814.10 and 50,164.93

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Solution

The fourth proportional to 90,445, 124,814.10 and 50,164.93 is: 69,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,445 : 124,814.10 = 50,164.93 : x
  2. Step 2: Convert to fraction form
    90,445/124,814.10 = 50,164.93/x
  3. Step 3: Cross multiply
    90,445x = 124,814.10 × 50,164.93
  4. Step 4: Simplify right side
    90,445x = 6,261,290,589.51
  5. Step 5: Solve for x
    x = 6,261,290,589.51/90,445
  6. Step 6: Final answer
    x = 69,227.60

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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.