Home / 51,259.26-76,889.40-17,980.14

Finding the Fourth Proportional to 51,259.26, 76,889.40 and 17,980.14

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Solution

The fourth proportional to 51,259.26, 76,889.40 and 17,980.14 is: 26,970.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,259.26 : 76,889.40 = 17,980.14 : x
  2. Step 2: Convert to fraction form
    51,259.26/76,889.40 = 17,980.14/x
  3. Step 3: Cross multiply
    51,259.26x = 76,889.40 × 17,980.14
  4. Step 4: Simplify right side
    51,259.26x = 1,382,482,176.52
  5. Step 5: Solve for x
    x = 1,382,482,176.52/51,259.26
  6. Step 6: Final answer
    x = 26,970.39

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Double scale
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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.