Home / 49,987.18-74,980.80-13,051.18

Finding the Fourth Proportional to 49,987.18, 74,980.80 and 13,051.18

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Solution

The fourth proportional to 49,987.18, 74,980.80 and 13,051.18 is: 19,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,987.18 : 74,980.80 = 13,051.18 : x
  2. Step 2: Convert to fraction form
    49,987.18/74,980.80 = 13,051.18/x
  3. Step 3: Cross multiply
    49,987.18x = 74,980.80 × 13,051.18
  4. Step 4: Simplify right side
    49,987.18x = 978,587,917.34
  5. Step 5: Solve for x
    x = 978,587,917.34/49,987.18
  6. Step 6: Final answer
    x = 19,576.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.