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Finding the Fourth Proportional to 90,888.65, 125,430.47 and 50,604.97

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Solution

The fourth proportional to 90,888.65, 125,430.47 and 50,604.97 is: 69,837.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,888.65 : 125,430.47 = 50,604.97 : x
  2. Step 2: Convert to fraction form
    90,888.65/125,430.47 = 50,604.97/x
  3. Step 3: Cross multiply
    90,888.65x = 125,430.47 × 50,604.97
  4. Step 4: Simplify right side
    90,888.65x = 6,347,405,314.44
  5. Step 5: Solve for x
    x = 6,347,405,314.44/90,888.65
  6. Step 6: Final answer
    x = 69,837.16

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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.