Home / 90,699.65-125,160.16-50,412.03

Finding the Fourth Proportional to 90,699.65, 125,160.16 and 50,412.03

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Solution

The fourth proportional to 90,699.65, 125,160.16 and 50,412.03 is: 69,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699.65 : 125,160.16 = 50,412.03 : x
  2. Step 2: Convert to fraction form
    90,699.65/125,160.16 = 50,412.03/x
  3. Step 3: Cross multiply
    90,699.65x = 125,160.16 × 50,412.03
  4. Step 4: Simplify right side
    90,699.65x = 6,309,577,740.72
  5. Step 5: Solve for x
    x = 6,309,577,740.72/90,699.65
  6. Step 6: Final answer
    x = 69,565.62

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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.