Home / 51,979.65-77,975.57-18,235.35

Finding the Fourth Proportional to 51,979.65, 77,975.57 and 18,235.35

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Solution

The fourth proportional to 51,979.65, 77,975.57 and 18,235.35 is: 27,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.65 : 77,975.57 = 18,235.35 : x
  2. Step 2: Convert to fraction form
    51,979.65/77,975.57 = 18,235.35/x
  3. Step 3: Cross multiply
    51,979.65x = 77,975.57 × 18,235.35
  4. Step 4: Simplify right side
    51,979.65x = 1,421,911,810.40
  5. Step 5: Solve for x
    x = 1,421,911,810.40/51,979.65
  6. Step 6: Final answer
    x = 27,355.16

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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.